Let's Do Mathematics 1 – Worktext A

n ca t Wo r k t e xt x

1A

for le arne arners 6 - 7 year s o l d

Copyright © Blue Ring Media Pty Ltd Published under license by Regal Education Inc for the Middle East and Northern Africa. frica.

Re ga le du ca tio n

This book or parts thereof may not be reproduced in any form, stored in any retrieval ieval system, or transmitted in any form by any means – electronic, mechanical, photocopy, recording, cording, g, or otherwise otherwis – without prior written permission of the copyright owner.

First edition 2021 This edition is published by Regal Education Inc. ISBN 978-1-953591-02-9

Regal Education Inc. 10 Pienza, Irvine, CA 92606, United States www.regaleducation.org

ii

Let’s Do Mathematics

al ed uc ati on

Let’s Do Mathematics is a series covering levels K-6 and is fully aligned to o the United States Common Core State Standards (USCCSS). Each level consists of two books boo (Book A and Book B) and combines textbook-style presentation of concepts oncepts pts as well as workbook practice.

Central to the USCCSS is the promotion of problem-solving skills ls and reasoning.

Let’s Do Mathematics achieves this by teaching and presenting ng g concepts through throu a problem-solving based pedagogy and using the concrete-pictorial-abstract pictorial-abstract torial-abstract ((CPA) approach. Learners acquire knowledge and understanding a ng off concepts through thr th guided progression beginning with concrete examples and experiences which then w flow into pictorial representations and finally mastery at the and symbolic level. e abstract an a This approach ensures that learners develop a fundamental understanding of concepts damental ental understa underst rather than answering questions by learned procedures edures es and algorithms. algorit Key features of the series include:

Anchor Task

1

ber Bonds Numb

er Bonds mber Making Numb

Open-ended activities serve as the starting point for understanding new vities concepts. Learners engage in activities e and discussions to form concrete experiences before the conceptt is formalized.

Anchor Task Ancho

3

2

Let’s Learn n

Adding 3 Numbers

We can use doub les to help add 3 numbers.

How many cupca kes are there in all?

Let’s Learn

Concepts are presented sented in a clear and a colorful manner.. Worked rked problems problem provide learners step-by-step ers with ith guided step-by ste progression through Series gh examples. Ser mascots provide rovide de guidance through throug throu helpful comments new nts and nd observations when w concepts pts are e introduced. introduce

We can add 3 numb ers in any order.

How many cubes are there in all?

6

2

6

Let’s put together and count.

Double 6 is 12.

Now add 3.

6

3

3

2+6+3=8+3 = 11 There are 11 cubes

6 + 6 + 3 = 12 + 3 = 15 There are 15 cupca kes altogether.

11

We can make 10 to help add 3 numb ers.

How many fruits are there altogether?

altogether.

You can use a number line to help you add.

8 4

8 and 2 make 10.

Now add 4.

2 1 212

2

3

4

5

6

7

8

9

10

11

12 13

8 + 4 + 2 = 10 + 4 = 14

213

iii

Let’s Practice

r of pencils. Fill in the 2. Find the total numbe

Let’s Practice 1.

blanks.

(a)

Fill in the blanks. (a)

Learners demonstrate their understanding of concepts through a range of exercises and problems to be completed in a classroom environment.

Questions provide a varying degree of guidance and scaffolding as learners progress to mastery of the concepts.

.

ones is

.

ke make

30 and

pencils in all.

Re ga le du ca tio n

ten and

There are

(b)

(b)

.

ones is

ten and

(c)

ones is

ten and

.

pencils in all. pen

e There are

ones is

ten and

.

make

nd and

(d)

.

17

At Home

16

1.

Comp mplet lete the he numb n mber er story. s ry.

2. Complete the number storiess.

At Home

Further practice designed to be completed without the guidance of a teacher. Exercises and problems in this section follow on from those completed under Let’s Practice.

(a) (a There are

toys.

are on the shelf.

are on the floor.

There are

ducks.

(b) There are

ducks are re in the e water.

toys.

toys are teddy bears

.

duckss are on the grass

.

toys are dolls.

36

Hands On

37

Play this game in pairs.

Hands On

Learners are encouraged to ‘learn by doing’ through the use of group activities and the use of mathematical manipulatives.

1.

counte Each player puts a counter

on ‘Start’.

Move your counter the 2. Take turns in rolling a dice. dice the dice. umberr of spaces shown on numbe n. If you answer wer the subtraction equatio 3. Answer start. back to the st ncorrectly, move your counter incorrec is the winner!

The first player to the finish

15 – 8

2–6 112

15 – 9

13 – 9

16 – 9

11 – 3

13 – 5

11 – 6

14 – 5

14 – 6

15 – 7

16 – 8

17 – 8

14 – 6

2–5 112

18 – 9

Solve it!

14 – 8

11 – 8

13 – 7

15 – 8

12 – 4

17 – 9

1.

12 – 9

Fill in the missing numb ers.

11 – 7

(a)

16 – 7

Look! 8 + 1 = 9 What’s the rule?

W

11

259

Solve It!

2

9

1

1

8

(b)

Activities that require learners earners ers to apply logical lo reasoning and problem-solving. are often em-solving. solving. Problems Proble posed which do not for solving ot have e a routine strategy strate s them. Learners are encouraged ncouraged to think creatively and apply a range of problem-solving roblem-solving heuristics. heu

((c))

9

7

3

2

10

1

5

5

(d)

0

(e)

6

14

2

2

5

8

204

Looking king Back

Consolidated olidated practice w where learners demonstrate on a monstrate their understanding underst und range nge of concepts taught taugh within a unit.

3. Compare the sets. Fill in the blanks.

Looking Back

1.

Set B

Set A

Count on in tens.

40

50

70

80

60

90

dots.

Set A has

tens is less than

2. Count and complete.

Set B has

dots.

tens.

<

4. Check the smaller number. (a)

53

55

(b)

8

17

5. Write > or < to compare the numbers.

and

There are

(a)

22

.

(c)

9

pencils in all.

(e)

53

make

12

91

50

14

(b)

4

(d)

43

47

(f)

70

83

45

44

iv

Re ga le du ca tio n

Contents 1 Number Bonds

Making Number Bonds Number Stories

2 Addition to 10

Adding by Counting On Vertical Addition Addition Word Problems

3 Subtraction Within 10

Subtracting by Taking Away ting ng Back Subtracting by Counting n Vertical Subtraction d Problems blems Subtraction Word

4 Addition to 20

Coun Count Adding by Counting On y Making aking 10 1 Adding by nd Near Dou D Doubles and Doubles d 2-digit g Addition A Add 1-digit and ing 3 Numbers Numbe Adding ddition n Word Problems P Pro Addition

btraction Within W 20 5 Subtraction

Subtractin b Subtracting

by Counting Back Subtrac Subtracting

by Making 10 S Subtracti Subtraction Word Problems

2 2 32

44 46 77 86

94 96 110 140 148

158 162 174 186 196 212 219

226 1228 240 270

v

Making Number Bonds Anchor Task

2

ion

1

Number Bonds

3

Let’s Learn

part

du ca tio n

Halle has 4 red balloons.

Wyatt has 3 green balloons.

part

Let’s put the balloons together.

part whole w

4

whole

part

7

Re g

3

d 3 make m 4 and 7.

There are 7 balloons in all.

4

ed uc ati on

4 rabbits are eating.

2 rabbits join them. part art

2

whole

part

6

4

4 and 2 make 6.

There are 6 rabbits in all.

4

a

There are 4 pink cubes.

There are 6 blue cubes.

4 and 6 make ke 10.

1 There are e 10 cubes in all.

6

part

part

4

6

10 whole

5

Re ga le du ca tio n

Let’s use number bonds to show some ways to make 7.

3

4

7

3 and 4 make 7.

2

5

7

2 and 5 make 7.

6

1

7

6 and 1 make 7.

6

Re ga le du ca tio n

Let’s use a number balance to show 3 ways to make 10.

3

7

10

7 and 3 make 10.

1

9

10

9 and 1 make 10.

4

6

10

6 and 4 make 10.

7

Let’s Practice Complete the number bonds.

Re ga le du ca tio n

1.

(a)

1

3

2

(b)

(c)

8

Re ga le du ca tio n (d)

(e)

(f)

9

(a)

uc ati on

2. Complete the number bonds.

2

4

2

There are

bees in all.

Re ga le

(b)

4

There are re

ants in all.

There are

butterflies in all.

(c)

10

Re ga le du ca tio n

(d)

There are

frogs in all.

There are re

dragonflies in all.

There are

fish in all.

(e)

(f)

11

Re ga le du ca tio n

3. Draw the missing dots and complete the number bonds of 5. (a)

1

4

5

(b)

3

5

(c)

4

5

12

4. Fill in the blanks. Complete the number bonds of 6.

Re ga le du ca tio n

(a)

6

4

2

(b)

6

(c)

6

(d)

6

13

5. Fill in the blanks. Complete the number bonds of 7.

Re ga le du ca tio n

(a)

7

1

6

(b)

7

(c)

(d)

14

6. Fill in the blanks. Complete the number bonds of 8.

Re ga le du ca tio n

(a)

8

and

make 8.

(b)

8

and

make ake 8.

(c)

8

and

make 8.

(d)

8

and

make 8.

15

7. Fill in the blanks. Complete the number bonds of 9.

Re ga le du ca tio n

(a)

and

make 9.

and

make 9.

and

make 9.

(b)

(c)

16

Re ga le du ca tio n

(d)

and

make

.

and d

make

.

and

make

.

(e)

(f)

17

8. Fill in the blanks. Complete the number bonds of 10.

uc ati on

(a)

and

make 10.

and a d

make 10.

Re ga l

(b)

(c)

and

18

make 10.

(e)

and

make

.

and d

make

.

make

.

Re

(f)

al ed uc ati on

(d)

and

19

Hands On

1.

ca tio n

Play this game in groups of 3 or 4.

Place number cards on your table.

2. Listen to your teacher.

3. Find the cards to make the number bond.

numb bond?

4. How many ways can you make the number

20

Solve It! Jordan places 7 counters on his notebook.

He covers some of the counters.

How many counters did he cover? er Make a number bond to fin find the answer.

Re ga le du ca tio n

1.

7

Jordan covered

counters. ounters.

2. Michelle places 9 counters on her notebook. unters o me of the he co She covers some counters.

How many counters nters did she cover?

Make a number ber bond to find the answer.

9

Michelle covered

counters.

21

At Home Complete the number bonds.

Re ga le du ca tio n

1.

(a)

3

5

2

There are

5

in all.

(b)

There are

in all.

There are

in all.

(c)

22

Re ga le du ca tio n

(d)

There are

in all.

There are e

in all.

There are

in all.

(e)

(f)

23

(a)

and

Re g

(b)

and

24

ed uc ati on

2. Complete the number bonds.

make e 10.

10

make 10.

and

Re ga

(d)

and a

du ca t

(c)

make 10.

make 10.

25

3. Complete the number bonds of 6. (b))

Re ga le du ca tio n

(a)

5

4

1

6

6

(c)

(d))

2

1

6

6

(e)

(f)

0

3

6

26

4. Complete the number bonds of 7. (b))

Re ga le du ca tio n

(a)

3

6

7

7

(c)

(d))

2

0

7

7

(e)

(f)

4

5

7

27

5. Complete the number bonds of 8. (b)

Re ga le du ca tio n

(a)

2

4

8

8

(c)

(d) (d d) d)

1

6

8

8

(e)

(f)

3

8

8

28

6. Complete the number bonds of 9. (b)

Re ga le du ca tio n

(a)

3

1

9

9

(c)

(d))

5

0

9

9

(e)

(f)

4

2

9

29

7 . Complete the number bonds of 10. (b)

Re ga le du ca tio n

(a)

6

7

10

10

(c)

(d) (d d) d)

5

1

10

10

(e)

(f)

1

10

30

0

Solve It!

Re ga le du ca tio n

How many cubes in all?

Complete the number bond to find the answer. (a)

,

There are

and

make

.

cubes es in all.

(b)

,

There are

and

make

.

cubes in all.

31

Let’s Learn

Re g

Let’ss make a number story.

Let

on

Number Stories

The monkeys nkeys are playing pl in the forest.

4

4 monkeys a are in the tree. monk 3 monkeys are on the ground.

There are 7 monkeys in all.

32

7 3

Complete the number story.

Re g

1.

There The e are

n

Let’s Practice

squirrels.

squirrels are eating. squirrels are sleeping.

33

Re ga le

n

2. Complete the number stories.

(a) There are e

children.

are re boys. are gi girls.

(b) There are The e a

children.

children are standing. children are sitting.

34

Re ga

n

3. Draw animals.

Make your own number story.

35

Complete p the number story. y

Re

1.

There The e are

ducks.

ducks are in the water. ducks are on the grass.

36

n

At Home

Re ga le d

n

2. Complete the number stories.

(a) There are

toys.

are on the shelf. are on the th floor.

(b) There are

toys.

toys are teddy bears. toys are dolls.

37

Solve It! How many turtles are on land?

How many turtles are in the water?

How many turtles are there in all?

du ca tio n

1.

4

Re ga

4

38

0

Re ga le du ca tio n 2. Use the table to write e the different differ number of turtles ut of the th water. that can be in and out Turtles out of the he water wa

Turtles in the water

39

Looking Back Complete the number bond.

Re ga le du ca tio n

1.

(a)

(b)

(c)

(d)

40

(a)

(b)

Re ga

(c)

ed uc ati on

2. Complete the number bond.

(d)

41

(a)

and

Re g

(b)

and

42

ed uc ati on

3. Fill in the blanks. Complete the number bond.

make e

.

make

.

(a)

There are There are There are

Re g

(b) b)

du ca tio n

4. Complete plete the number stories.

chickens. rabbits.

animals mals in al all.

books b are on the shelf. books are on the floor.

There are

books in all.

43

Addition to 10

Anchor Task

44

on

2

45

Let’s Learn

ca tio n

Adding by Counting On There are 4 blue cubes and 3 yellow cubes.

How many cubes are there in all?

Let’s put the th cubes together and count.

1, 2, 3, 4, 5, 6, 7.

4

Re

7

make 7.

4 and 3 mak 4+3=7 There are 7 cubes in all.

46

3

Re ga le du ca tio n

Count on from the greater number.

How many apples in all?

6

8

6

7

2

8

6 and 2 make 8.

6+2=8 There are 8 apples in all.

How many flowers in all?

7

7 and 3 make 110.

7 + 3 = 10 There ere are a 10 flowers in all.

8

9

10

7

10

3

47

Let’s Practice Put together and count.

Re ga le du ca tio n

1.

(a)

3

+

There are

2

=

5

5

cubes in all.

(b)

+

=

There are

cubes ubes in all. a

(c)

+

=

There e are

cubes in all.

(d)

+

There are T

48

=

cubes in all.

Re ga le du ca tio n

(e)

+

=

There are

cubes in all.

(f)

+

=

There are

cubes u es in all.

(g)

+

=

There are e

cubes in all.

(h)

+

There are Ther

=

cubes in all.

49

2. Put together and count.

Re ga le du ca tio n

(a)

2

+

3

=

(b)

+

=

+

=

+

=

(c)

(d)

50

5

Re ga le du ca tio n

(e)

+

=

+

=

+

=

+

=

(f)

(g)

(h)

51

(a)

ed uc ati on

3. Add by counting on from the greater number.

3

Re ga

(b)

52

4

+

=

+

=

5

Re ga le du ati on

(c)

(d)

+

=

+

=

53

Hands On

1.

Pick a card.

ed uc ati on

Play this game in pairs!

What is 5 + 3?

2. Show it to your partner. ner. Have Hav them add aloud by counting on.

5, 6, 7, 8.

5 + 3 is 8.

3. Switch roles and let your partner pick a card.

54

Solve It!

Re ga le du ca tio n

Where is the bee?

1

1.

2

4

3

6

7

8

9

10

The bee starts on flower er 2 and flies forward 2 flowers.

Where is the bee now?

Write an addition equation. quation +

=

The bee is on n flower

2.

5

now.

The bee flies forw forward 4 more flowers.

Where iss the bee now? e an addition equation.

Write +

=

The bee is on flower

now.

55

At Home

Re ga le du ca tio n

1 . Add by counting on from the greater number.

Complete the number bond. (a)

4

6

2

+

=

+

=

(b)

56

Re ga le du ca tio n (c)

(d)

+

=

+

=

57

Re ga le du ca tio n

2. Color the dots a different color for each number.

Complete the equation. (a)

1+3=

(b)

3+4=

(c)

6+2=

(d)

9+0=

58

4

Re ga le du ca tio n

(e)

5+5=

(f)

7+3=

(g)

3+5=

(h)

2+7=

(i)

5+4=

59

1.

Complete the number bond.

Write 2 addition equations.

= 5

4

+ 4 = 5

1

4 + 1

1

Re g

(b)

60

ed uc ati

(a)

on

Let’s Practice

+

=

+

=

5

+ +

Re g

(d) d)

ed uc a

(c)

= =

+

=

+

= 61

Re ga le du ca tio n

2. Use the numbers to make 2 addition equations.

Make a number bond. (a)

3

+

4

=

7

3

4

+

3

=

7

4

(b)

+

=

+

=

+

=

+

=

+

=

+

=

(c)

(d)

62

7

Re ga le du ca tio n

(e)

+

=

+

=

+

=

+

=

+

=

+

=

+

=

+

=

(f)

(g)

(h)

63

Hands On

1.

ed uc ati on

Play this game in groups of 4!

Player 1 chooses 2 cards.

Re

2. Players 2, 3 and 4 write te a number numb bond and 2 addition equations.

3. The first player to finish chooses the next cards! f

64

Solve It! Use these numbers to make 4 addition equations. ons.

Re ga le du ca tio n

1.

+

=

+

=

+

=

+

=

addit 2. Use these numbers to make 5 addition equations.

+

=

+

=

+

=

+

=

+

=

65

At Home Use 2 different colors to show ways to make 5.

Re ga le du ca tio n

1.

(a)

3

+

2

=

(b)

+

=

+

=

+

=

(c)

(d)

66

5

2. Use 2 different colors to show ways to make 6.

Re ga le du ca tio n

(a)

+

=

+

=

+

=

+

=

(b)

(c)

(d)

67

3. Use 2 different colors to show ways to make 7.

Re ga le du ca tio n

(a)

+

=

+

=

+

=

+

=

(b)

(c)

(d)

68

4. Use 2 different colors to show ways to make 8.

Re ga le du ca tio n

(a)

+

=

+

=

+

=

+

=

(b)

(c)

(d)

69

5. Use 2 different colors to show ways to make 9.

Re ga le du ca tio n

(a)

+

=

+

=

+

=

+

=

(b)

(c)

(d)

70

6. Use 2 different colors to show ways to make 10.

Re ga le du ca tio n

(a)

+

=

+

=

+

=

+

=

(b)

(c)

(d)

71

Re ga le du ca ti n

7. Match the kites to the children to make 6.

4

1

3

5

0

3

2

1

6

5

8. Match the monkeys to the bananas to make 7. b

1

0

72

4

3

7

3

5

4

6

2

ed uc ati on

9. Match the bees to the beehives to make 8.

0

4

5

2

7

3

1

6

8

4

10. Match the mice to the he cheese chee to make 9.

9

3

2

Re ga

5

1

6

8

7

0

4

73

Re ga le du ca tio n

11. Match the letters to mailboxes to make 10.

74

2

3

5

8

7

6

9

5

4

1

Play this game in pairs.

1.

ca tio n

Hands On

Place 10 counters on your table.

e

2. Player 1 closes their eyes. Player 2 hides es some counters cou under a cup.

Re ga

3. Player 1 opens their eyes and an says how many counters are under und the e cup. cup p

4.

4 A player gets 1 point if they are correct.

5. Switch c rolls. The first player to get 5 correct is the winner.

75

Hands On

1.

uc ati on

Play this game in pairs.

Each player puts a counter on ‘Start’.

2. Take turns in rolling a dice. Move your counter for forward the number of spaces shown on the dice.

3. Answer the addition equation. If you ou answer answe incorrectly, move your counter back to the start. start The first player to the finish is the winner! winne

1+8

3+2

2+8 5+2 2+4

1+3 1+3

2+6

6+3 1+6

1+9

8+2

5+5 3+3

0+3 2+7

4+5

4+4

4+1

R

0+3

76

5+3

6+0 2+2

10 + 0

3+7

Vertical Addition

Re ga le du ca tio n

Let’s Learn

Add the dots.

We can add l this. across, like

5+1=6

We can also add down, like this.

5 + 1 6

77

Let’s Practice Add.

Re ga le du ca tio n

1.

(a)

3

+

1

4

(b)

+

(c)

+

(d)

+

78

Re ga le du ca tio n

(e)

+

(f)

+

(g)

+

(h)

+

79

2. Add.

2 + 1

(b)

3 + 2

(c)

(d)

6 + 3

(e)

5 + 2

(f)

6 + 4

(g)

4 + 0

(h)

9 + 0

(i)

2 + 2

(j)

2 + 4

(k)

3 + 4

(l)

8 + 1

(m)

5 + 1

(n)

2 + 0

(o)

3 + 7

5 + 5

Re ga le du ca tio n

(a)

80

At Home Add.

Re ga le du ca tio n

1.

(a)

1+2=

(b)

5+2=

(c)

4+2=

(d)

0+6=

(e)

5+3=

(f)

8+2=

(g)

4+6=

(h)

4+5=

(i)

1+7=

(j)

3+1=

(k)

6+3=

(l(l)

4+3=

(m) 3 + 3 =

(n)

3+2=

(o)

6+2=

(p)

1+9=

(q)

0 + 10 0=

(r)

7+3=

(s)

4+6=

(t)

5+5=

81

2. Add.

8 + 0

(b)

4 + 4

(c)

(d)

6 + 1

(e)

3 + 6

(f)

4 + 6

(g)

6 + 0

(h)

1 + 8

(i)

2 + 5

(j)

5 + 5

(k)

4 + 3

(l)

3 + 3

(m)

1 + 1

(n)

0 + 3

(o)

3 + 7

7 + 1

Re ga le du ca tio n

(a)

82

3. Fill in the missing numbers.

4+

=6

(b)

+2=7

(d)

7+

=7

Re ga le du ca tio n

(a) (c)

+8=9

(e)

2+

=8

(f)

4+

=9

(g)

3+

=9

(h)

4+

= 10

(i)

(k)

+ 5 = 10

1+

(m)

=9

+ 2 = 10

(j)

+5=6

(l) 3 +

(n)

+2=4

(o)

4+

=8

(p)

5+

(q)

7+

=9

(r)

10 +

+3=7

(t)

(s)

=6

=8

= 10

+3=4

83

Solve It!

Re ga le du ca tio n

Fill in the blanks.

What is the rule? (a)

1

3

2

The rule is

(b)

4

+1

3

6

6

84

3

.

2

Th The rule is

5

2

5

.

4

9

3

5

4

8

Re ga le du ca tio n

(c)

5

The rule is

(d)

4

.

3

8

The e rule is

6

7

2

7

6

6

.

85

Addition Word Problems

Re ga le du ca tio n

Let’s Learn

Halle has 2 apples.

She also has 3 bananas.

How many fruits does Halle have in all?

2

5

3

2+3=5 Halle has 5 fruits in all.

There are 4 chocolate ice e creams. crea There are 4 strawberry berry ice creams. eams are there in all?

How many ice creams

4

8

4

4+4=8 There are 8 ice creams in all.

86

Re ga le du

n

Let’s make 2 addition stories.

There are 3 boys.

There are 7 girls.

3 + 7 = 10 re in all. ll There are 10 children

dren in the th blue team.

There are 5 children There are 5 children in the yellow team.

5 + 5 = 10 There are 10 children in all.

3 10 7 5 10 5

87

Let’s Practice

ed uc ati on

1.

There are

toy cars.

There are +

toy trains.

=

There are

toys in all.

Re g

2.

Riley has

Keira gives her +

Riley has

88

flowers. fl more flowers.

= flowers in all.

ladybugs and

Blake spots +

=

Blake spots

Re g Michelle elle has

Michelle Mi has

ants. an

animals als in all.

4.

+

du ca tio n

3.

green socks and

red socks.

= socks in all.

89

1.

Dominic has He buys +

ed uc ati on

At Home

fish.

more fish. =

Dominic has

fish in n all. a

Re g

2.

ants are hav having lunch. more ants join them. +

There are

90

=

ants in all.

al ed uc ati on

3.

There are

blue crabs. ab

There are

red crabs.

+

=

There are

crabs in all.

Re

crabs are o on the rocks. crabs are in the water. +

There are

= crabs in all.

91

Looking Back Put together and add.

Re ga le du ca tio n

1.

(a)

+

=

There are

cubes in all.

(b)

+

=

There are

shapes hapes in all. a

2. Count on to add.

+

There are

92

=

flowers in all.

Re ga le du ca tio n

3. Complete the number bond.

Write two addition equations.

+

=

+

=

4. Complete the equations. (a) 6 + 2 =

(b) 4 + 5 =

(c) 1 + 5 =

(d) 5 + 5 =

(e) 1 +

=9

(f (f) 10 +

= 10

5. Add. (a)

6 + 3

(b)

2 + 8

(c)

3 + 5

93

Anchor Task

94

on

3

Subtraction Within 10

95

Subtracting by Taking Away

Re ga le du ca tio n

Let’s Learn

There are 7 penguins on the ice.

3 penguins jump into the water.

part

7 take away 3 is 4.

7–3=4 There are 4 penguins guins left on the ice.

whole

4

7

3

part

96

Re ga le du ca to n

There are 9 cubes on the plate.

Take away 4 cubes.

9 take away 4 is 5.

9–4=5 There are 5 cubes left on the e plate.

4

9

5

There are 10 cubes.

Cross out 2 cubes.

10

2

10

8

2

8

10 take ake away 2 is 8.

10 0–2=8 There are 8 cubes left.

97

Let’s Practice Cross out to subtract.

Complete the equation.

Re ga le du ca tio n

1.

(a)

4–2=

(b)

6–1=

(c)

5–3=

(d)

8–2=

98

2

Re ga le du ca tio n

(e)

9–4=

(f)

8–5=

(g)

7–4=

(h)

10 – 2 =

(i)

10 – 5 =

99

2. Write the subtraction equation.

Re ga le du ca tio n

(a)

4

–

1

=

(b)

–

=

–

=

(c)

100

3

Re ga le du ca tio n

(d)

–

=

–

=

–

=

–

=

(e)

(f)

(g)

1 01

Re ga le du ca tio n

3. Make a number bond.

Complete the equation. (a)

6

–

=

–

=

–

=

(b)

(c)

1 02

4

2

(e)

–

=

–

=

–

=

–

=

Re ga

(f)

ed uc ati on

(d)

(g)

1 03

Hands On

Re ga le du ca tio n

Play this game in pairs!

1. Pick a card.

2. Show it to your partner. show the equation er. Have them th by making groups off count counters.

3. Say the subtraction actio equation together.

10 — 3 = 7

104

Solve It!

Re ga le du ca tio n

Halle has 9 marbles.

She puts some marbles into a cup.

Make number bonds to show how many marbles bles are in each cup. (a)

9

2

(b)

7

9

(c)

(d)

1 05

At Home Make a number bond.

Complete the equation.

Re ga le du ca tio n

1.

(a)

3

7

7

–

3

=

(b)

–

=

–

=

–

=

(c)

(d)

106

4

4

Re ga le du ca tio n

(e)

–

=

–

=

–

=

–

=

(f)

(g)

(h)

1 07

(a)

ed uc ati on

2. Write the subtraction equation.

6

(b)

Re ga

(c)

–

2

=

–

=

–

=

–

=

(d)

108

4

Re ga le du ca tio n

(e)

–

=

–

=

–

=

–

=

(f)

(g)

(h)

1 09

Subtracting by Counting Back

Re ga le du ca tio n

Let’s Learn

A monkey has 8 bananas.

It eats 3 bananas.

How many bananas does it have left?

Start at 8 and count back 3 steps.

Count back from 8.

0

1

2

3

4

5

6

8 take ake away 3 is i 5.

8–3=5 The has 5 bananas left. he monkey m

110

7

8

Re ga le du ca tio n

There are 9 leaves on a branch.

4 leaves fall to the ground. y leaves are left on the branch?

How many

0

1

2

3

4

5

6

7

8

9

8

9

9–4=5 There are 5 leavess left on the branch.

Find 10 minus 5.

0

1

2

3

4

5

6

7

10

10 – 5 = 5

111

1.

Count back.

Complete the subtraction equation.

al ed uc

(a)

0

1

Re 0

6–3= 112

2

3

4

5

2

3

4

5

3

5–2= (b)

on

Let’s Practice

1

6

0

1

2

9–4=

Re g

(d)

0

1

2

du ca t

n

(c)

3

4

5

6

7

8

9

3

4

5

6

7

8

9

10

10 – 2 =

1 13

At Home

(a)

ed uc ati on

Count back.

Complete the subtraction equation.

6

(b)

–

–

Re ga l

(c)

2

=

=

–

=

–

=

(d)

114

4

Re ga le du ca tio n

(e)

–

=

–

=

–

=

–

=

(f)

(g)

(h)

1 15

Play this game in pairs!

1.

uc ati on

Hands On

Pick a card from the pack.

Re ga le

What is 10 – 3?

2. Show it to your partner. ner. Have Hav them subtract by counting back k aloud. alo 10, 9, 8, 7.

10 – 3 is 7.

3. Switch roles and let your partner pick a card.

116

Let’s Practice Complete the number bond.

Write 2 subtraction equations.

Re ga le du ca tio n

1.

(a)

5

–

3

=

2

5

–

2

=

3

5

2

3

(b)

–

=

–

=

–

=

–

=

(c)

1 17

Re ga le du ca tio n

2. Complete the number bond.

Write 2 subtraction equations. (a)

6

–

2

=

4

6

–

4

=

2

(b)

–

=

–

=

–

=

–

=

(c)

118

6

2

4

Re ga le du ca tio n

3. Complete the number bond.

Write 2 subtraction equations. (a)

–

=

–

=

–

=

–

=

–

=

–

=

7

(b)

(c)

1 19

(a)

– –

Re g

(b)

120

ed uc ati on

4. Complete the number bond.

Write 2 subtraction equations.

= =

–

=

–

=

8

du ca tio n

(c)

–

=

–

=

Re g

(d)

–

=

–

=

121

n

5. Complete the number bond.

Write 2 subtraction equations.

– –

Re g

(b)

122

ed uc

(a)

= =

–

=

–

=

9

du ca t

(c) c)

–

=

–

=

Re ga

(d) d)

–

=

–

=

123

Re ga le du ca tio n

6. Complete the number bond.

Write 2 subtraction equations. (a)

–

=

–

=

–

=

–

=

–

=

–

=

(b)

(c)

1 24

10

Re ga le du ca tio n

(d)

–

=

–

=

–

=

–

=

(e)

125

Hands On

1.

ed uc ati on

Play this game in groups of 4!

Player 1 chooses 2 number cards.

Re

2. Players 2, 3 and 4 race to o write a number bond and 2 subtraction equations. s.

3. The first player to finish chooses the next cards!

3

1 26

Solve It! Use these numbers to make 5 subtraction equations. ations.

You can use the numbers more than once.

Re ga le du ca tio n

1.

–

=

–

=

–

=

–

=

–

=

2. Use these numbers to o make 6 subtraction equations.

You can use the numbers than once. mbers more m

–

=

–

=

–

=

–

=

–

=

–

=

127

At Home

Re ga le du ca tio n

Use the numbers to make a number bond.

Write 2 subtraction equations. (a)

5

–

2

=

3

5

–

3

=

2

(b)

–

=

–

=

–

=

–

=

–

=

–

=

(c)

(d)

1 28

2

5

3

Re ga le du ca tio n

(e) –

=

–

=

–

=

–

=

–

=

–

=

–

=

–

=

(f)

(g)

(h)

129

Let’s Practice (a))

ed uc ati on

Complete the number bond. Write the number fact ct family.

2

5

3

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

Re

(b)

130

ed uc ati on

(c) c)

+

=

–

=

+

=

–

=

Re g

(d) d)

+

=

–

=

+

=

–

=

1 31

ed uc ati on

(e)

+

=

–

=

+

=

–

=

Re ga

(f))

132

+

=

–

=

+

=

–

=

+

=

+

=

Re g

(h))

du ca tio n

(g)

–

=

–

=

+

=

–

=

+

=

–

=

1 33

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

R

(j)j

1 34

ed uc ati on

(i)

ed uc ati on

(k)

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

Re

(l)

1 35

Hands On

1.

ed uc ati on

Play this game in groups of 4!

Player 1 chooses 2 number cards.

R

2. Players 2, 3 and 4 race e to write a number bond and a number fact family.

3. The player to finish chooses the next cards! e first f

1 36

Solve It!

Re ga le du ca tio n

Use these numbers to make 6 equations.

You can use the numbers more than once. (a)

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

(b)

1 37

At Home (a) 4 5

ed uc ati on

Use the numbers to make a number fact family.

1

(b) 7

2

Re ga

5

+

=

+

=

–

=

–

=

+

=

+

=

–

=

–

=

+

=

+

=

–

=

–

=

(c)

6

3

1 38

9

(d)

=

+

=

–

=

–

=

+

=

+

=

–

=

–

=

+

=

+

=

–

=

–

=

Re ga le du ca tio n

+

8

1

7

(e)

6

4

10

(f)

10 0

2

8

1 39

Vertical Subtraction

Re ga le du ca tio n

Let’s Learn

Subtract the dots.

We can subtract su across, like this.

7–2=5

We can also subtract down, like this.

7 – 2 5

140

Let’s Practice Subtract.

Re ga le du ca tio n

1.

(a)

(b)

6

–

3

–

3

(c)

(d)

–

(e)

–

(f)

–

–

(h)

(g)

–

–

1 41

2. Subtract.

3 – 2

(b)

8 – 7

(c)

(d)

4 – 2

(e)

9 – 4

(f)

9 – 6

(g)

6 – 3

(h)

7 – 7

(i)

1 – 0

(j)

3 – 0

(k)

8 – 1

(l)

7 – 2

(m)

5 – 3

(n)

8 – 6

(o)

8 – 2

9 – 8

Re ga le du ca tio n

(a)

142

At Home Subtract.

Re ga le du ca tio n

1.

(a)

2–1=

(b)

5–2=

(c)

5–3=

(d)

7–0=

(e)

6–3=

(f)

7–6=

(g)

8–7=

(h) h)

9–9=

(i) 10 – 4 =

(j) 110 – 9 =

(k)

(l) 4 – 0 =

9–6=

(m) 7 – 5 =

(n)

6–4=

(o)

10 – 2 =

(p)

10 – 3 =

(q)

8–6=

(r)

10 – 5 =

(s)

4–1=

(t)

8–4=

1 43

2. Subtract.

7 – 1

(b)

8 – 3

(c)

(d)

4 – 3

(e)

9 – 9

(f)

3 – 1

(g)

8 – 3

(h)

7 – 6

(i)

1 – 1

(j)

9 – 7

(k)

2 – 1

(l)

8 – 4

(m)

9 – 5

(n)

8 – 0

(o)

9 – 1

9 – 3

Re ga le du ca tio n

(a)

1 44

3. Fill in the missing numbers. =1

(b) 5 –

=4

Re ga le du ca tio n

(a) 4 –

(c)

–5=2

(d)

–5=4

(e) 9 –

=3

(f) 10 –

(g) 7 –

=3

(h)) 9 –

=9

–1=7

(j) 6 –

=2

(i)

=3

4. Complete the equations. (a) 2 + 0 =

(b) 6 + 4 =

(c) 7 - 3 =

(d) 7 - 1 =

(e) 5 - 3 =

(f) 8 - 5 =

(g) 8 + 2 =

(h) 1 + 6 =

(i) 10 0-3=

(j) 4 + 5 =

1 45

Solve It!

Re ga le du ca tio n

Fill in the blanks. What is the rule? (a)

4

3

3

The rule is

(b)

2

–1

5

5

146

1

.

7

The rul rule is

6

2

3

.

4

6

4

9

7

5 The rule is

5

3

2

The e rule is

5

4

.

6

eg

(d)

8

le du ca tio n

(c)

9

3

7

6

.

1 47

Subtraction Word Problems

al ed uc ati on

Let’s Learn

There are 8 ladybugs on a branch.

3 ladybugs fly away.

How many ladybugs are left on the branch? ch?

3

8

5

8–3=5 n the branch. bra There are 5 ladybugs left on There are 6 toys on the shelf. shelf Wyatt takes 2 toys. s.

How many toys are e left on the shelf?

2 6

R

4 6–2=4 There are 4 toys left on the shelf.

148

4 10

on

There are 10 insects.

4 insects are dragonflies.

10 – 4 = 6 6 insects are butterflies.

Re ga l

6

There are 10 insects. nsects.

7 insects are flying.

10 – 7 = 3 3 insects are resting.

7 10 3

1 49

Let’s Practice

ed uc ati on

1.

There are

leaves on the branch. branch nch. nc

fall away.

–

=

There are

leaves left on tthe branch.

Re g

2.

Sophie hie has

She gives –

Sophie has

150

flowers. flowers to Chelsea.

= flowers left.

There are

du ca ti n

3.

balls in all.

are soccer balls.

–

=

are basketballs.

Re g

4.

There e are

shells.

are w washed away.

–

There are

= shells left.

1 51

At Home

There are

ed uc ati

1.

children playing in the park.

children walk home.

–

=

children are left in n the park. park

Re ga

2.

as Blake has He gives –

Blake ak has

152

balloons. b

balloons to Keira.

=

balloons left.

Re ga le du c

3.

There are

animals.

are squirrels.

–

=

are rabbits. bbi

e There are

animals. a n

are eating.

–

=

are sleeping.

153

Looking Back Cross out to subtract.

Complete the equation.

Re ga le du ca tio n

1.

(a)

8–3=

(b)

10 – 4 =

er bond.

2. Complete the number equatio Write a subtraction equation. (a)

–

=

–

=

(b)

154

Re ga le du ca tio n

3. Count back to subtract.

Write a subtraction equation. (a)

–

=

–

=

(b)

4. Complete the number bond. on Write 2 subtraction equations. quations. (a)

–

=

–

=

–

=

–

=

(b)

155

8 5

3

uc ati on

5. Use the numbers to make a family of number facts.

Re ga

y 6. Complete the subtraction story.

There are re

tturtles.

turtles are in the water. turtle –

=

turtles are on the sand.

156

+

=

+

=

–

=

–

=

7. Complete the equations. (b) 5 – 4 =

(c) 1 + 8 =

(d) 7 + 2 =

Re ga le du ca tio n

(a) 10 + 0 =

(e) 4 +

=9

(f) 10 –

(g) 6 – 2 =

(h) 2 + 5 =

(i) 7 – 7 =

(j) 5 + 3 =

(k) 1 +

=4

(l) 10 –

=4

=2

8. Fill in the blanks. (a)

6 – 3

(b)

2 + 8

(c)

8 – 4

(d)

6 + 1

(e)

8 – 5

(f)

3 + 6

157

Addition to 20

Re ga le du ca tio n

4

Remember This!

Put the cubes together and count.

How many cubes in all?

4

2

6

4 and 2 make 6.

4+2=6 There are 6 cubes in all.

Count on from the greater ter number. num How many cubes in all?

7

7 and 3 mak make 10.

7 + 3 = 10 There e are 10 cubes in all.

1 58

8

9

10

7

10

3

Have a Go!

Re ga le du ca tio n

Add. (a)

+

=

+

=

+

=

+

=

+

=

(b)

(c)

(d)

(e)

159

Anchor Task

160

1 61

Adding by Counting On

Re ga le du ca tio n

Let’s Learn

Chelsea has 8 teddy bears.

Sophie gives her 3 more teddy bears.

How many teddy bears does Chelsea have ve now?

Count nt on from the eater num greater number.

8

8 + 3 = 11 Chelsea has 11 teddy bears now. b

1 62

9

10

11

Re ga le du ca tio n

How many cubes in all?

10

9

11

12

13

14

9 + 5 = 14 There are 14 cubes in all.

Dominic reads 13 books.

Michelle reads 4 books.

How many books did they read in all?

13

14

15

16

17

13 + 4 = 17 Dominic and Michelle read 17 books in all. r Find 16 + 4.

8

9

10

11

12 13 14 15 16 17

18 19 20

16 6 + 4 = 20

1 63

Let’s Practice Add by counting on.

Re ga le du ca tio n

1.

(a)

10

9

9

+

2

=

(b)

+

1 64

=

11

11

Re ga le du ca tio n

(c)

+

=

(d)

+

=

1 65

Re ga le du ca tio n

2. Add by counting on.

Write an addition equation. (a)

12

+

2

=

(b)

+

=

+

=

(c)

1 66

14

Re ga le du ca tio n

(d)

+

=

+

=

+

=

(e)

(f)

1 67

Play this game in pairs!

ca tio n

Hands On

Re ga le d

1. Place 20 counters in a bag.

T counters from the bag. b 2. Take turns to pick a handful of counters

3. Place the counters on n your table. Group them by color.

Now put them together. her.

4. Count on from m the greater number to add.

5. Write an addition equation.

168

Solve It!

8

10

9

11

12

13 13

114 4

15

16

Re ga le du

7

n

Where is the bee?

1.

The bee starts on flower 9 and flies f forward 3 flowers.

Where is the bee now? w?

Write an addition equation. uation. +

=

The bee is on n flower

now.

2. The bee flies forw forward 4 more flowers. e is the bee now?

Where Write e an addition equation. +

=

The b bee is on flower

now.

1 69

At Home Add by counting on.

Write an addition equation.

Re ga le du ca tio n

1.

(a)

12

13

+

=

+

=

(b)

170

14

15

Re ga le du ca tio n

(c)

+

=

+

=

(d)

1 71

Re ga le du ca tio n

2. Add by counting on the number line.

Complete the equations.

8

172

9

10

11

12 13 14 15 16 17

(a)

8+2=

(b)

9+4=

(c)

9+3=

(d)

17 + 2 =

(e)

9+5=

(f)

16 + 4 =

(g)

11 + 3 =

(h (h)

12 + 3 =

(i)

12 + 4 =

(j)

116 + 3 =

(k)

13 + 3 =

(l)

12 + 5 =

(m) 14 + 3 =

(n)

18 + 2 =

(o)

(p)

17 + 3 =

13 + 5 =

18 19 2 20

Count the number eps. of steps.

Re ga le du ca tio n

3. Add by counting on the number line.

Complete the equations. ons.

8

9

10

11

12 13 14 15 5 16 17

18 19 20

(a)

9+

= 11

(b) b)

114 +

= 18

(c)

8+

= 12

(d)

17 +

= 20

(e)

12 +

= 15

(f (f)

14 +

= 15

(g)

14 +

= 16

(h)

15 +

= 20

(i)

10 +

= 15

(j)

16 +

= 19

(k)

12 +

= 16

(l)

19 +

= 20

(m) 14 +

= 16

(n)

15 +

= 18

(o))

= 19

(p)

13 +

= 17

15 +

1 73

Adding by Making 10

Re ga le du ca tio n

Let’s Learn

Jordan has 8 seashells.

Riley gives him 5 more.

How many seashells does Jordan have now? ow?

8

5

Make a group of 10 and then add the groups.

3

10

10 + 3 = 13 Jordan has now. h 13 3 seashells seashe seashelllls now

8+5 2

8 + 5 = 13 10 + 3 = 13

174

= 10 + 3 = 13

3

Re ga le du ca tio n

There are 9 orange cubes and 5 purple cubes.

How many cubes are there in all?

5

9

4

10

10 + 4 = 14 There are 14 cubes altogether. er.

9+5 1

= 10 + 4 = 14

4

Find 8 + 7.

8 + 7 = 10 + 5 = 15

1 75

Let’s Practice Circle a set of 10.

Complete the equation. (a)

6+5= (b)

8+4= 176

ed uc ati on

1.

11

Re ga le du ca tio n

(c)

8+7=

(d)

5+8=

1 77

Re ga le du ca tio n

2. Circle a set of 10.

Complete the equation. (a)

8+4 =

10

=

12

+

(b)

9+5 =

=

178

+

2

Re ga le du ca tio n

(c)

7+6 =

+

=

(d)

9+7 =

+

=

1 79

Re ga le du ca tio n

3. Circle a set of 10.

Complete the number bond and the equation. (a)

9+4

1

3

9+4 =

10

=

13

+

(b)

7+8

7+8 = =

180

+

3

Re ga le du ca tio n

(c)

5+9

5+9 =

+

=

(d)

8+8

8+8 =

+

=

1 81

Hands On

ed uc ati on

Play this game in pairs!

1. Place 20 cubes in a bag. rom the bag. bag 2. Take turns to pick a handful of cubes from

Re g

3. Place the cubes on your table.

4. Connect the cubes to make a ten t first.

5. Write e an addition additio equation like this.

8 + 7 = 10 + 5 = 15 8 + 7 = 15

182

At Home Circle a set of 10.

Complete the equation.

Re ga le du ca tio n

1.

(a)

9+8=

(b)

9+7=

1 83

Re ga le du ca tio n

(c)

6+9=

(d)

7+7=

184

2. Complete the number bond and the equation. =

+

Re ga le du ca tio n

(a) 8 + 6

2

(b) 9 + 3

4

=

=

+

=

(c) 7 + 5

=

+

=

(d) 9 + 8

=

+

=

(e) 7 + 6

=

+

=

1 85

Doubles and Near Doubles

Re ga le du ca tio n

Let’s Learn

We can use doubles to add.

A double is when both numbers we are adding dding are the th same.

Double 1

1+1=2

Double 2

2+2=4

Double 3

3+3=6

Double 4

4+4=8

Double 5

5 + 5 = 10

186

Double 6

Re ga le du ca tio n

6 + 6 = 12

Double 7

7 + 7 = 14

Double 8

8 + 8 = 16

Double 9

9 + 9 = 18

ouble 10 Double

10 + 10 = 20

1 87

tio n

We can use near doubles to add.

Let’s find 7 + 8.

Re ga le du c

7 + 8 is the same as double 7 and 1 more more.

Double 7 is 14.

7 + 7 = 114

7 + 8 = 14 + 1 = 15

188

14 and 1 more is 15.

14 + 1 = 15

Re ga le du ca tio n

Let’s find 7 + 6.

7 + 6 is the same as d 1 less. double 7 and

Double 7 is 14.

7 + 7 = 14 4

14 and 1 less is 13.

14 – 1 = 13

7 + 6 = 14 – 1 = 13

1 89

Let’s Practice Use doubles to write an addition equation.

Complete the sentence.

Re ga le du ca tio n

1.

(a)

4

+

4

=

8

Double ble

4

iis

8

.

(b)

+

=

Double oub

is

.

+

=

Double

is

.

+

=

Double

is

.

+

=

Double

is

.

(c)

(d)

(e))

190

2. Use doubles to add.

ga le du ca tio n

(a) 2 + 2 =

(b) 4 + 4 = (c) 8 + 8 =

(d) 10 + 10 =

3. Use doubles to add. (a)

(c)

(b)

3 + 3

7 + 7

(d)

9 + 9

6 + 6

(f)

5 + 5

R

(e))

1 + 1

1 91

Re ga le du ca tio n

4. Use doubles and near doubles to complete the equations. (a)

4+4=

4+5=

4+3=

7+7=

7+6=

7+8=

5+5=

5+6=

5+4=

(b)

(c)

192

Re ga le du ca tio n

(d)

8+8=

8+9=

8+7=

9+9=

9+8=

9 + 10 =

(e)

1 93

At Home

Re ga le du ca tio n

Use doubles and near doubles to add. (a) 5 + 5 =

5+6=

5+4=

(b) 6 + 6 =

6+7=

6+5=

(c) 8 + 8 =

8+7=

8+9=

(d) 10 + 10 =

10 + 9 =

(e)

3 + 3

3 + 2

3 + 4

(f)

7 + 7

7 + 8

7 + 6

(g)

9 + 9

9 + 8

9 + 10

1 94

Solve It!

Re ga le du ca tio n

What hat number is each child c thinking about?

1.

If you double myy number and add 1 more, you get 15.

Ethan is thinking of the number

2.

.

1 less than double my number is 13.

Sophie is thinking ng of the number

.

3.

2 more than double my number is 20.

Keira is thinking of the number Keir

.

1 95

1-digit and 2-digit Addition

Re ga le du ca tio n

Let’s Learn

Add the dots.

10

4

14

10

4

10 and 4 make 14.

10 + 4 = 14 Add 10 and 8.

10

8

18 is 10 and nd 8.

10 + 8 = 18

196

18

10

8

Re ga le du ca tio n

Ethan has 12 cookies.

Jordan gives him 4 more cookies.

How many cookies does Ethan have now?

12

First, make a group of 10.

10 0

4

Then The add the ones.

2+4=6

12 + 4 = 110 0+4+2 = 110 0+6 10 2 = 116 6

12 2 + 4 = 16

12 + 4 = 16 10 + 6 = 16

1 97

Re ga le du ca tio n

Find 13 + 5.

5

13

10

8

15 + 3 = 10 + 3 + 5 = 10 + 8 10 5 = 18

15 + 3 = 18

1 98

115 5 + 3 = 18 10 + 8 = 18

Let’s Practice Complete the number bond and addition equation. ation.

Re ga le du ca tio n

1.

(a)

10

5

10

5

15

10 + 5 =

(b)

10

9

+

=

(c)

10

7

+

=

1 99

2. Complete the number bond and addition equation.

Re ga le du ca tio n

(a)

13 + 4

10

13 + 4 =

10

+

3

=

10

+

7

+

3

4

=

(b)

12 + 7

12 + 7 =

+

=

+

=

20 0

+

(c)

Re ga le du ca tio n

15 + 3

15 + 3 =

+

=

+

+

=

(d)

15 + 5

15 + 5 =

+

=

+

+

=

2 01

3. Complete the number bond and addition equation. (a)

Re ga le du ca tio n

14 + 2

14 + 2 =

(b)

16

10

4

15 + 4

15 + 4 =

(c)

12 + 5

12 + 5 =

(d)

11 + 8

11 + 8 =

(e)

16 + 4

116 + 4 =

20 2

4. Add.

10

=

16

+

6

eg al ed uc ati on

(a) 14 + 2 =

(b) 15 + 3 =

+

=

(c) 12 + 5 =

+

=

(d) 13 + 6 =

+

=

(e) 16 + 4 =

+

=

(f) 14 + 5 =

+

=

2 03

1.

Fill in the missing numbers. (a)

Look! k! 8 + 1 = 9 W t’s the rrule?

What’s

11 2

9 1

8

Re ga le du

1

ati on

Solve It!

(b)

((c) c))

9

7

2

1

(d)

5

5

0

(e)

6

2

20 4

10

3

14

2

5

8

2. Fill in the missing numbers. (a)

2 add 9 is 11.

9

Re ga le du ca tio n

2

11

4

(b)

7

(c))

7

8

9

8

2

15

13

6

15

11

(d)

(e)

3

20

8

0

2 05

At Home Complete the number bond and addition equation. ation. (a)

al ed uc ati on

1.

13 3+5

10

(b)

13 + 5 =

10

=

18

+

3

8

14 + 5

14 + 5 =

+

=

(c)

14 + 6

14 + 6 = = 206

+

(d)

Re ga le du ca tio n

16 + 2

16 + 2 =

+

=

(e)

12 + 5

12 + 5 =

+

=

(f)

11 + 8

11 + 8 =

+

=

2 07

2. Complete the addition equations.

Re ga le du ca tio n

(a)

14 + 4 =

(b)

5 + 11 =

(c)

13 + 6 =

208

Re ga le du ca tio n

(d)

16 + 3 =

(e)

8 + 12 =

(f)

17 + 2 =

2 09

3. Add.

10

=

19

+

9

eg al ed uc ati on

(a) 12 + 7 =

(b) 14 + 2 =

+

=

(c) 17 + 3 =

+

=

(d) 13 + 6=

+

=

4. Add.

210

(a) 11 + 5 =

(b) 4 + 11 =

(c)) 4 + 15 =

(d) 17 + 3 =

(e)) 13 + 3 =

(f) 13 + 5 =

(g)) 8 + 12 =

(h) 12 + 6 =

Solve It!

Re ga le du ca tio n

Fill in the blanks.

What is the rule? (a)

12

9

16

The rule is

(b)

13

+4

5

T The rule is

117

.

112

111

115 5

13

8

18

14

14

.

211

Adding 3 Numbers

Re ga le du ca tio n

Let’s Learn

We can add 3 numbers in any order.

How many cubes are there in all?

2

3

6

Let’s put together and count.

11

2+6+3=8+3 = 11 alto There are 11 cubess altogether.

You ca can use a number numbe line to help you add.

1

212

2

3

4

5

6

7

8

9

10

11

12 13

Re ga le du ca tio n

We can use doubles to help add 3 numbers.

How many cupcakes are there in all?

6

Double 6 is 12.

Now add 3.

6

3

6 + 6 + 3 = 12 + 3 = 15 gether.

There are 15 cupcakes altogether.

p add 3 numbers.

We can make 10 to help re altogether? alto How many fruits are there

8

4

8 and 2 make 10.

Now add 4.

2

8 + 4 + 2 = 10 + 4 = 14

213

Let’s Practice Put the cubes together and count.

Re ga le du ca tio n

1.

(a)

2+3+1=

(b)

6+3+3=

(c)

2+7+5=

(d)

9+2+4=

(e)

5+5+5=

(f)

2+8+6=

21 4

2. Add by finding doubles.

4

=

5

+

1

Re ga le du ca tio n

(a) 2 + 2 + 1 =

4

(b) 6 + 5 + 6 =

+

=

(c) 3 + 4 + 4 =

+

=

(d) 9 + 9 + 2 =

+

=

(e) 5 + 7 + 7 =

+

=

(f) 8 + 2 + 8 =

+

=

215

3. Add by making a 10.

10

=

18

+

8

Re ga le du ca tio n

(a) 5 + 5 + 8 =

(b) 2 + 5 + 8 =

+

=

(c) 9 + 4 + 6 =

+

=

(d) 9 + 1 + 3 =

+

=

(e) 6 + 7 + 3 =

+

=

(f) 5 + 5 + 2 =

=

21 6

+

4. Add the dots.

Re ga le du ca tio n

(a) 3+3+5=

(b)

6+5+7=

(c)

+

+

=

+

+

=

+

+

=

+

+

=

+

+

=

+

+

=

(d)

(e)

(f)

(g)

(h)

217

5. Add.

Re ga le du ca tio n

(a) 3 + 3 + 9 =

(b) 7 + 4 + 8 =

(c) 5 + 6 + 2 =

(d) 8 + 7 + 5 =

6. Add.

21 8

(a)

6 2 + 2

(b)

8 2 + 4

(c)

6 6 + 5

(d)

6 9 + 5

Addition Word Problems

Re ga le du ca tio n

Let’s Learn

In a field there are 8 squirrels and 5 rabbits.

How many squirrels and rabbits are there iin n all? a

8

13

5

8 + 5 = 13 There are 13 squirrels and d rabbits in all.

Halle walks up 6 steps.

She then walks up 12 steps. p another ano How many steps does Halle Ha walk up in all?

6

18

12

6 + 12 = 18 Halle walks up 18 steps in all.

219

Let’s Practice Wyatt borrows 8 books from the library.

Blake borrows 6 books from the library.

How many books do Wyatt and Blake borrow ow in all?

ed uc ati on

1.

=

Wyatt and Blake borrow

books b in all.

Re

2. There are 7 cookies in n a jar. ookies in the jar.

Keira puts 5 more cookies How many y cookies okie are iin the jar now?

There are

22 0

= cookies in the jar now.

ed uc ati on

3. Mrs Miller has 12 eggs.

She buys 6 more eggs.

How many eggs does Mrs Miller have now?

=

Mrs Miller has

eggs gs now.

Re

er games.

4. Ethan has 9 computer Dominic has 6 more compu computer games than Ethan.

How many computer m r games gam does Dominic have?

Dominic has

= computer games.

221

Looking Back Count on to add.

Complete the equation.

Re ga le du ca tio n

1.

+

=

2. Add by counting on the number line. lin Complete the equations..

8

222

9

10

11

12 13 114 15 16 17

(a) 8 + 4 =

(b) 10 + 5 =

(c) 8 + 3 =

(d) 17 + 2 =

(e) 9 + 4 =

(f) 16 + 3 =

(g) 11 + 2 =

(h) 14 + 3 =

18 19 20

Re ga le du ca tio n

3. Circle a set of 10.

Complete the number bond and the equation.

8+7

8+7 =

+

=

4. Make 10 first. Add. (a) 6 + 5 =

+

=

(b) 9 + 6 =

+

=

(c) 7 + 8 =

+

=

223

5. Complete the number bond and the equation. =

+

Re ga le du ca tio n

(a) 9 + 5

=

(b) 7 + 6

=

+

=

(c) 8 + 7

=

+

=

6. Use doubles and near ar doubles doub to add.

224

(a) 4 + 4 =

4+5=

4+3=

(b) 7 + 7 =

7+8=

7+6=

(c) 8 + 8 =

8+7=

8+9=

7. Add.

10

+

Re ga le du ca tio n

(a) 14 + 5 = =

(b) 15 + 4 =

+

=

(c) 12 + 8 =

+

=

8. Add.

(a) 7 + 3 + 9 =

(b) 8 + 6 + 2 =

(c) 4 + 4 + 7 =

(d) 5 + 3 + 5 =

9. Add. (a)

6 4 + 4

(b)

8 1 + 8

(c)

7 3 + 6

225

Re ga le du ca tio n

5

Subtraction Within 20

Remember This!

There are 9 birds on a branch.

7 birds fly away.

How many birds are left on the branch?

part

whole

7

9

9 take away 7 is 2.

9–7=2 bra There are 2 birds left on the branch.

2

part

es.

There are 10 cubes. es.

Cross out 2 cubes.

10

2

10

8

10 0 take away 2 is 8.

10 – 2 = 8 ar 8 cubes left.

There are

22 6

2

8

Have a Go! Count back.

Complete the subtraction equation. (a)

– (b)

–

ed uc ati on

1.

=

=

2. Complete the numberr bond.

Write a subtraction equation. equatio

Re ga

(a)

–

=

–

=

(b) b)

227

Anchor Task

22 8

n

Subtracting by Counting Back

229

Let’s Learn

Re ga le du ca tio n

Dominic has 11 marbles.

He gives 3 marbles to Ethan.

How many marbles does Dominic have now?

Count back 3 steps.

8

9

10

11 – 3 = 8 Dominic has 8 marbles now. s.

There are 13 cubes.

How many cubes are blue? b

Count Coun back 4 steps.

9

9 13 – 4 = 9 9 cubess are a blue.

2 30

10

11

12

4

13

11

ca tio n

Halle has 12 balloons.

5 balloons burst.

How many balloons does Halle have left?

Re ga

Count Cou u back on an number line.

3

4

5

6

7

8

9

10

11

12

13

14

15

12 – 5 = 7 Halle hass 7 balloons lleft.

2 31

Let’s Practice Count back to subtract.

Re ga le du ca tio n

1.

10 11 12 13 14

(a)

14 – 4 =

(b)

9 10 11 12

12 – 3 =

(c)

7 8 9 110 11 12

12 – 5 =

(d)

14 15 16 17 18

18 – 4 =

23 2

(e)

10

11

12

13

Re ga le du ca tio n

9

13 – 4 =

(f)

15 16 17 18 19

19 – 4 =

(g)

12 13 14 15

15 – 3 =

15 16 17 18 19 20

(h)

20 – 5 =

2 33

Re ga le du ca tio n

2. Use the number line to count back.

Complete the equation. (a)

8

9

10

11

12

13

14

15

16 6

17

18 18

19 20

18

–

2

=

16

8

9

10

11

12

13 3

14

15

16

17

18

19 20

12

13

14

15

16

17

18

19 20

(b)

–

=

(c)

8

9

–

2 34

10

11

=

Re ga le du ca tio n

(d)

8

9

10

–

11

12

13

14

15

16

17

18

19 20

12

13

14 4

15

16

17

18

19 20

12

13

14

15

16

17

18

19 20

=

(e)

8

9

10

–

11

=

(f)

8

9

–

10 0

11

=

2 35

Hands On Play this game in pairs!

1.

Make a set of cubes like in the drawing.

2. Roll a dice.

3. Count back and take away the number mb ber of of cubes shown on the dice.

4. Write a subtraction equation to how many cubes o show sho h are left.

The number um on on the th dice is =

al

–

.

The T h number on the dice is – 23 6

=

.

io

The number on the dice is =

ed

–

The number mber on on the the dice is –

.

=

The T h number on the dice is –

.

.

=

2 37

At Home Use the number line to count back.

Complete the equation.

Re ga le du ca tio n

1.

(a)

8

9

10

11

12

13

14

15

16

177

18

19 20

10

11

12

13

14

15 5

16

17

18

19 20

10

11

12

13

14

15

16

17

18

19 20

10

11

12

13

14

15

16

17

18

19 20

10

11

12

13

14

15

16

17

18

19 20

14 – 3 =

(b)

8

9

19 – 4 =

(c)

8

9

12 – 3 =

(d)

8

9

15 – 2 =

(e)

8

9

18 – 2 =

23 8

(f) 9

10

11

12

13

14

15

16

17

18

19 9 20

Re ga le du ca tio n

8

16 – 3 =

(g)

8

9

10

11

12

13

14

15

16

17

18 1

19 1 20

20 – 4 =

2. Subtract by counting back on the number numb line.

Complete the equations.

8

9

10

11

12

13

14

15

16

17

(a) 18 – 1 =

(b) 13 – 4 =

(c) 20 – 2 =

(d) 15 – 4 =

(e) 19 – 4 =

(f) 14 – 5 =

(g) 12 – 4 =

(h) 20 – 4 =

(i)

12 2–5=

(j) 19 – 2 =

(k) 13 – 3 =

(l) 13 – 5 =

(m) 11 – 3 =

(n) 18 – 3 =

(o) 15 – 2 =

(p) 18 – 5 =

18

19

20

2 39

Let’s Learn

ed uc ati on

Subtracting by Making 10 We can subtract by taking away the ones and adding to a 10.

There are 18 grasshoppers on a branch.

6 grasshoppers fly away.

How many grasshoppers are left?

18

a

18 is 10 and 8.

10

18 – 6 = 12 12 10

8

8 – 6= 2 10 0 + 2 = 12 2 18 – 6 = 12 1 There are 12 grasshoppers left.

24 0

8–6=2

We can subtract by making 10 first.

le du ca tio n

A baker has 14 pies.

He sells 6 pies.

How many pies does the baker have left?

10

4

First, rst, subtract subtr 4 to make 10.

8 14 – 6 = 8

Then, subtract 2 from the 10.

4 2 14 – 4 = 110 0 10 – 2 = 8 14 – 6 = 8 The baker has 8 pies left.

2 41

al ed uc ati o

There are 15 birds on a fence.

9 birds fly away.

How many birds are left on the fence?

First subtract 5 to leave 10.

10

5

Then, subtractt 4 to leav leave 6.

Re

15 – 9 = 6 6

15 – 9 = 6 There are 6 birds left on the fence.

242

5 4 15 – 5 = 10 10 – 4 = 6

We can also subtract from 10 first.

Re ga le du ca tio n

Ethan has 13 goldfish.

He gives 6 goldfish to Dominic.

How many goldfish does Ethan have now?

First, regroup the 13 goldfish.

13 is 10 and 3.

10

3

n 3, Next, since 6 is greater than subtract 6 from 10. That leaves es 4.

Now add 4 and 3.

4

3

113 3–6= 7

110

3 10 – 6 = 4 4+3=7

3–6=7 13 h 7 goldfish now.

Ethan has

2 43

Let’s Practice Subtract the ones. (a)

14 – 2 = (b)

19 – 4 =

Re ga

(c)

ed uc ati on

1.

18 – 3 =

(d)

16 6–3=

244

Re ga le du ca tio n

(e)

20 – 7 =

(f)

18 – 6 =

(g)

17 – 5 =

(h)

20 – 6 =

2 45

2. Cross out the cubes and complete the equation.

Re ga le du ca tio n

(a)

15 – 2 =

(b)

18 – 4 =

(c)

19 – 5 =

(d)

14 – 2 =

(e)

20 – 3 =

(f)

119 – 6 =

246

(a)

15

–

(b)

–

=

12

=

Re ga

(c)

3

ed uc ati on

3. Complete the subtraction equation.

–

=

–

=

(d)

2 47

4. Fill in the blanks and complete the equations.

Re ga le du ca tio n

(a)

14 – 2 =

10

4

12

4

–

2

=

2

10

+

2

=

12

(b)

18 – 5 =

248

–

=

+

=

Re ga le du ca tio n

(c)

18 – 4 =

–

=

+

=

–

=

+

=

–

=

+

=

(d)

17 – 5 =

(e)

19 – 6 =

2 49

At Home Subtract.

Re ga le du ca tio n

1.

(a)

1

–

(c)

1

–

(e)

1

–

(g)

1

–

(i)

1

–

2 50

5 4

(b)

3 3

d) (d)

7 5

(f)

4 3

(h)

9 4

(j)

1

8 3

1

9 5

1

8 6

1

7 2

1

7 3

–

–

–

–

–

(k)

1

(l)

9 6

(n)

1 –

9 9

Re ga le du ca tio n

–

6 3

(m)

1

–

1

–

7 6

2. Subtract.

(a) 15 – 5 =

(b) 18 – 5 =

(c) 12 – 1 =

(d) (d 19 – 2 =

(e) 17 – 3 =

(f) 16 – 6 =

(g) 19 – 4 =

(h) 13 – 2 =

(i)

20 – 3 =

(j) 19 – 8 =

(k) 20 0–6=

(l) 16 – 4 =

(m) 18 – 4 =

(n) 14 – 3 =

(o) 113 – 3 =

(p) 18 – 2 =

2 51

Re ga le du ca tio n

3. Use doubles to add and subtract.

Complete the equations. (a)

4

+

4

=

8

8

–

4

=

(b)

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

(c)

(d)

(e)

25 2

4

Re ga le du ca tio n

4. Use doubles to add and subtract.

Match the equations. (a) 5 + 5 =

18 – 9 =

(b) 9 + 9 =

10 – 5 =

(c) 6 + 6 =

14 – 7 =

(d) 8 + 8 =

12 – 6 =

(e) 10 + 10 =

16 – 8 =

(f) 7 + 7 =

20 – 10 =

253

Let’s Practice

Re ga le du ca tio n

Fill in the blanks.

Complete the equations. (a)

13 – 5 =

3

2

8

13

–

10

–

3 2

= =

(b)

17 – 8 =

–

=

–

=

–

=

–

=

(c)

15 – 9 =

254

10 8

Re ga le du ca tio n

(d)

12 – 7 =

–

=

–

=

–

=

–

=

–

=

–

=

(e)

14 – 6 =

(f)

18 8–9=

255

At Home Cross out the objects to make 10 first.

Complete the equations.

Re ga le du ca tio n

1.

(a)

9

14 – 5 =

4

1

4 14

–

4

=

10

10

–

1

=

9

(b)

16 – 9 =

–

=

–

=

–

=

–

=

(c)

13 – 8 =

25 6

Re ga le du ca tio n

2. Fill in the blanks.

Complete the equations. (a)

6

(b)

(c)

(d)

(e)

7

16 – 9 =

13 – 7 =

16 – 8 =

14 – 6 =

18 – 9 =

3

16

–

6

=

10

10

–

3

=

7

–

=

–

=

–

=

–

=

–

=

–

=

–

=

–

=

257

Hands On

Re ga le du ca tio n

Play this game in pairs.

1.

Pick a card from each pile.

2. Work together to subtract number from the tract the smaller s greater number by making 10 first.

13 – 3 = 10 10 – 5 = 5

13 – 8 = 5

3. Continue ontin until you have turned over all the cards.

2 58

Play this game in pairs.

Each player puts a counter on ‘Start’.

ca tio n

1.

2. Take turns in rolling a dice. Move your counter forward ter forwa the number of spaces shown on the dice. ce. ou answer answe 3. Answer the subtraction equation. If you incorrectly, move your counter back k to the sstart.

The first player to the finish is the winner!

15 – 8

12 – 6

15 – 9 13 – 9 16 – 9

11 – 3 13 – 5

11 – 6

14 – 5 14 – 6

15 – 7 16 – 8 17 – 8 12 2–5

14 – 6 18 – 9

13 – 7

11 – 8

14 – 8

Re

15 – 8 17 7–9

12 – 4 16 – 7

12 – 9

11 – 7

259

Let’s Practice Cross out objects to subtract from 10 first.

Complete the equations.

Re ga le du ca tio n

1.

(a)

13 – 5 =

10

3

8

10

–

5

=

5

5

+

3

=

8

(b)

16 – 9 =

260

–

=

+

=

Re ga le du ca tio n

(c)

15 – 7 =

–

=

+

=

–

=

+

=

–

=

+

=

(d)

14 – 9 =

(e)

17 – 8 =

2 61

Re ga le du ca tio n

2. Cross out objects to subtract from 10 first.

Complete the equations. (a)

14 – 8 =

10

4

6

10

–

8

=

2

2

+

4

=

6

(b)

16 – 9 =

–

=

+

=

–

=

+

=

–

=

+

=

(c)

13 – 8 =

(d)

15 – 7 =

2 62

3. Complete the equations. (a)

3

10

–

9

=

1

1

+

2

=

3

Re ga le du ca tio n

12 – 9 =

10

(b)

(c)

(d)

(e)

2

16 – 8 =

13 – 5 =

17 – 8 =

13 3–7=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

+

=

2 63

At Home Complete the equations.

Re ga le du ca tio n

1.

(a)

10

(c)

(e)

17 – 8 =

9

(b)

16 – 8 =

7

12 – 8 =

16 – 9 =

(d)

(f (f)

12 – 7 =

13 – 4 =

2. Complete the equations. equation

264

(a) 13 – 9 =

(b) 18 – 9 =

(c) 12 – 6 =

(d) 13 – 6 =

(e) e) 177 – 9 =

(f) 15 – 8 =

(g) 14 – 8 =

(h) 11 – 7 =

3. Subtract. (b)

Re ga le du ca tio n

(a)

1

–

(c)

1

–

(e)

1

–

(g)

1

–

(i)i)

1

–

2 4

1

3 7

1

6 8

1

1 7

1

7 9

1

5 8

–

5 6

(d)

3 8

(f)

6 9

(h)

8 9

(j)

–

–

–

–

2 65

Let’s Practice

(a)

ed uc ati on

Complete the number bond.

Write the number fact family.

6

14

8

6

+

8

=

14

14 4

–

6

=

8

8

+

6

=

14

4 14

–

8

=

6

eg a

(b)

266

+

=

–

=

+

=

–

=

Re ga le du ca tio n

(c)

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

(d)

(e)

2 67

At Home

Re ga le du ca tio n

Complete the number bond.

Write the number fact family. (a)

13

16

3

(b)

+

=

–

=

+

=

–

=

7

9

16

268

+

=

–

=

+

=

–

=

(c)

7

Re ga le du ca tio n

11

(d)

18

+

=

–

=

+

=

–

=

6

14

20

+

=

–

=

+

=

–

=

(e)

7

15 15

8

+

=

–

=

+

=

–

=

2 69

Subtraction Word Problems

Re ga le du ca tio n

Let’s Learn

Jordan has 15 cupcakes.

He gives 5 cupcakes to his friends.

How many cupcakes does Jordan have left? left eft eft?

15 – 5 = 10

Jordan has 10 cupcakes left left..

Keira has 16 balloons.

9 balloons float away. balloons How many balloo ons ns does do Keira Keir ei have left?

16 6–9=7 Keira has 7 balloons left.

27 0

ed uc ati on

At summer camp, Riley takes 18 photographs.

Ethan takes 9 fewer photographs than Riley.

How many photographs does Ethan take?

18 - 9 = 9 Ethan takes 9 photographs.

R

Halle and Chelsea are collecting cting shells. shel Halle collects 17 shells. tha Halle.

Chelsea collects 8 fewer shells than How many shells does Chelsea collect?

17 – 8 = 9 Chelsea collected 9 shells.

2 71

Let’s Practice There are 12 birds on a branch.

5 birds fly away.

How many birds are left on the branch?

–

=

There are

ed uc ati on

1.

birds left ft on the branch. b

Re

2. There are 15 cans in a stack.

Wyatt knocks down 8 cans. cans How many cans ans ns are ar a left? ft?

–

=

cans are left.

27 2

– Riley sold

le du ca tio n

3. On the weekend, Riley sold 17 cups of lemonade.

She sold 9 cups on Saturday.

How many cups of lemonade did Riley sell on Sunday?

=

cups of lemonade emonad on Sunday.

Re

4. Blake had 18 pencils. ha 6 left.

He lost some pencils and had How many pencils nci did Blake Blak lose?

–

Blake lost

= pencils.

2 73

At Home Ethan buys 12 stickers.

He gives 5 stickers to his friend.

How many y stickers does Ethan have left?

Re ga le du ca tio n

1.

–

=

Ethan has

stickers left.

oks from the library.

2. Sophie borrows 15 books She returns 9 books.

How many books does Sophie have now? es Sop

–

Sophie has

27 4

=

books now.

– Riley read

le du ca tio n

3. Riley read 15 books.

Keira read 7 books. t ra?

How many more books did Riley read than Keira?

=

more books ooks than tha Keira.

Re

s.

4. Blake has 13 marbles. ewe marbles rble than Blake.

Wyatt has 9 fewer How many m marbles bles es do does d Wyatt ha have?

–

Wyatt has

= marbles.

2 75

Looking Back Subtract by counting back.

Complete the equations.

Re ga le du ca tio n

1.

(a) 16 – 1 =

(c) 20 – 2 = (e) 19 – 3 =

(b) 13 – 4 =

(d) 15 – 2 =

(f) 18 – 4 =

2. Cross out the cubes.

Complete the subtraction equation. ation. (a)

17 – 6 =

(b)

20 – 8 =

3. Subtract by making 10 1 first.

Fill in the blanks. lan s. (a)

15 – 8 =

2 76

–

=

–

=

Re ga le du ca tio n

(b)

16 – 9 =

(c)

(d)

14 – 6 =

15 – 9 =

–

=

–

=

–

=

–

=

–

=

–

=

–

=

+

=

4. Subtract from 10 0 first. firs Fill in the blanks. nks (a)

16 – 7 =

2 77

Re ga le du ca tio n

(b)

13 – 5 =

(c)

(d)

12 – 8 =

15 – 9 =

5. (a) 12 – 9 =

(b ) 17 – 9 =

(c) 15 – 6 =

(d) 13 – 8 =

(e) 13 3–6=

(f) 11 – 5 =

(g) 16 – 8 =

(h) 17 – 8 =

2 78

–

=

+

=

–

=

+

=

–

=

+

=

Re ga le du ca tio n

6. Complete the number bond.

Write the number fact family. (a)

+

=

–

=

+

=

–

=

+

=

–

=

+

=

–

=

(b)

7. Ethan hass 17 superhero super cards.

Blake hass 9 fewer superhero cards than Ethan. superh How many superhero cards does Blake have?

–

Bla Blake has

=

superhero cards.

2 79

Re ga le du ca tio n © Blue Ring Media edia Pty Ltd td ACN 161 590 496 4 2013 - 2021.

This publication possible without the tireless effort of our production team. ation would not have been pos Special thanks to: Daniel Hui Guan, Kevin Mahoney, Winston Goh, Jesse Singer el Cole, Matthew Cole, Wang W Joseph Taylor-Pritchard, Sophie Taylor-Pritchard, Tejal Thakur eph Anderson, Halle T Taylor-Pr Varasinun Pookwanmuang, Saijit Lueangsrisuk arasinun Mathanattapat, Mathanattapat Kanungnit Kanu

Original Illustrations: Natchanuch Nakapat, graphicsRF, Blue Ring Media and Interact Images Illustrat Nat Royalty-free images: Shutterstock, Adobe Stock imag S