Mastering Mathematics 1B

WMPB11033B

Primary

Mastering Mathematics Workbook 1B

Special Features

3 Topical-based practices 3 5 sets of revision papers 3 Challenging questions 3 Complete answers

Topic-By-Topic

Latest

MOE Syllabus

Primary WMPB11033B ISBN 978-981-07-1225-9

Pelangi Publishing Singapore Pte. Ltd.

( 201112597 C )

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Lilian Yeo

mastering maths wb1B.indd 1

8/20/14 2:42 PM

Unit 10

Mass............................................................... 1

Unit 11

Picture Graphs................................................... 7

General Revision 1.......................................................... 14 Unit 12

Numbers Up to 40, Addition and Subtraction within 40......................................................... 18

Unit 13

Mental Calculations........................................... 33

Unit 14

Multiplication................................................... 35

General Revision 2......................................................... 43 Unit 15

Division.......................................................... 48

Unit 16

Time............................................................. 52

General Revision 3......................................................... 55 Unit 17

Numbers Up to 100, Addition and Subtraction within 100....................................................... 59

Unit 18

Money (Part 1).................................................. 74

Unit 19

Money (Part 2)................................................. 78

General Revision 4......................................................... 86 Final Revision................................................................ 91 Challenging Questions..................................................... 99 Answers ................................................................... 103 iv

Content Math 1B.indd 4

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10

Mass

A Fill in the blanks with ‘lighter than’, ‘heavier than’

or ‘as heavy as’.

1.

The pencil case is

the school bag.

2.

The basket ball is

the ping-pong ball.

3.

The slippers are

the shoes.

4.

The mango is

the papaya.

1

10 Math Pri 1B 1

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Mathematics Primary 1B Unit 10 Mass

B Fill in each blank with the correct answer.

1.

stands for 1 unit.

1 The mass of the papaya is about

units.

2.

stands for 1 unit.

1 The mass of the present is about

units.

3.

stands for 1 unit.

1 The mass of the watermelon is about

units.

4.

stands for 1 unit.

1 The mass of each basketball is about

units.

2

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Mathematics Primary 1B Unit 10 Mass

C Look at the pictures below and fill in the blanks.

1. The mass of the glass is

.

2. The mass of the pot is

.

3. The mass of the kettle is

.

4. The mass of the cup is

.

5. The cup is heavier than the

.

6. The kettle is lighter than the

.

7. The

is the lightest.

8. The

is the heaviest.

9. The mass of the pot is

times heavier than the glass.

10. Arrange the four objects in order, beginning with the heaviest.

,

,

,

3

10 Math Pri 1B 3

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Mathematics Primary 1B Unit 10 Mass

D Match the fruits below with the correct scales.

1

stands for 1 unit.

The mass of the apple is three units.

The papaya is lighter than the durian but heavier than the apple.

The watermelon is the heaviest.

•

•

?

?

•

•

•

•

?

?

•

•

Arrange the fruits in order, beginning with the lightest. ,

,

,

4

10 Math Pri 1B 4

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Mathematics Primary 1B Unit 10 Mass

E Fill in each blank with the correct answer.

1

stands for 1 unit.

P

Q

R

S Figure 1

1. The mass of Box P is about

units.

2. The mass of Box Q is about

units.

3. The mass of Box R is about

units.

4. The mass of Box S is about

units.

5. Box

is the lightest.

6. Box

is the heaviest.

7. Box P, Box Q, Box R and Box S are rearranged as shown below.

Find A and B. A P B

R

A is Box

and B is Box

8. The Box R is heavier than Box S by

. units.

5

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Mathematics Primary 1B Unit 10 Mass

F Fill in each blank with the correct answer.

1

stands for 1 unit.

Laptop

Camera

Television Handphone

1. The

is the lightest.

2. The

is the heaviest.

3. The mass of the handphone is about 4. The mass of the camera is about 5. The camera is the handphone.

6. The laptop is the television.

units. units.

than the laptop but

than

than the camera but

than

7. Arrange the four objects in order, beginning with the lightest.

,

,

,

6

10 Math Pri 1B 6

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11

Picture Graphs

A Matthew prepared some delicious food to celebrate his

birthday. Use graph.

to represent 1 food item. Fill in the picture

ge Oran e Juic

ge Oran e Juic ge Oran e Juic ge Oran e Juic

ge Oran e Juic ge Oran e Juic ge Oran e Juic

ge Oran e Juic ge Oran e Juic ge Oran e Juic

Types of Food Matthew Prepared

Cupcake

Birthday cake

ge Oran e Juic

Orange juice

Apple

Lollipop

Doughnut 7

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Mathematics Primary 1B Unit 11 Picture Graphs

B The picture below shows some of the animals that live in the

ocean. Count how many of each animal you can see.

Use to represent 1 animal. Fill in the picture graph.

Animals Live in Ocean Turtle Fish Jelly fish

Eel Sea horse

8

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Mathematics Primary 1B Unit 11 Picture Graphs

C The picture graph below shows the savings of 5 children.

Fill in each blank with the correct answer.

Savings of 5 Children

Shelly Each

Alicia

Melvin

Ronald

represents 1 dollar.

1. Shelly has

dollars.

2. Penny has

more dollars than Melvin.

3. Ronald has

fewer dollars than Shelly.

4.

Penny

and

have the same amount of

money.

5. The amount of money Shelly saved is same as the total amount of money and saved.

6. The total amount of money saved by 5 children is

.

9

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Mathematics Primary 1B Unit 11 Picture Graphs

D The picture graph below shows the number of members of

each uniformed society in a class. Fill in each blank with the correct answer.

Number of Members of Each Uniformed Society Boy Scouts Girl Guides St. John Red Cross Each

represents 1 member.

1.

pupils are Boy Scouts.

2.

pupils are Girl Guides.

3. There are

pupils joined St. John.

4. There are

pupils joined Red Cross.

5. The most popular society is

.

6. The least popular society is

.

7. There are Girl Guides.

fewer pupils who joined St. John than

8. There are Boy Scouts.

more pupils who joined Red Cross than

9. There are

pupils in the class altogether.

10

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Mathematics Primary 1B Unit 11 Picture Graphs

E The picture graph below shows the types of fruit trees grown in

Mr Smith’s orchard. Fill in each blank with the correct answer.

Types of Fruit Trees

Plum Each

Pear

Orange

Apple

represents 1 tree.

1. There are

plum trees.

2. There are

pear trees.

3. The are

more pear trees than plum trees.

4. The are

fewer orange trees than apple trees.

5. The most number of trees is the

tree.

6. The least number of trees is the

tree.

7. There are

fruit trees altogether.

11

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Mathematics Primary 1B Unit 11 Picture Graphs

F The picture graph below shows the number of hamburgers

that Mrs White sold at her restaurant. Fill in each blank with the correct answer.

Number of Hamburgers Sold

Monday Each

Tuesday

Wednesday

Thursday

Friday

represents 1 hamburger.

1. Mrs White sold the most number of hamburgers on 2. The same number of hamburgers were sold on .

. and

3. The total number of hamburgers she sold on and is the same as the number of hamburgers she sold on Thursday.

4. The total number of hamburgers she sold from Monday to Friday is .

5. The least number of hamburgers sold is the most number of hamburgers sold.

fewer than

12

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Mathematics Primary 1B Unit 11 Picture Graphs

G The picture graph below shows the favourite storybooks of

some children. Study it and answer the questions.

Winnie the Pooh and Tigger Too 101 Dalmatians The Lion King The Little Mermaid Each

represents 1 child.

1. How many children like to read Winnie the Pooh and Tigger Too?

2. Which is the most favourite storybook?

3. How many more children like The Little Mermaid than 101 Dalmatians?

4. If 3 girls like to read The Lion King, how many boys like to read the same book?

13

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A Fill in the blanks with the correct answers.

1.

The mass of the pot is

.

2.

The mass of the teapot is

.

3.

Potatoes

The mass of the bag of potatoes is

.

4.

The mass of each can of sardines is

.

14

11b Revision 1 1B.indd 14

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Mathematics Primary 1B General Revision 1

B Fill in the blanks with ‘heavier than’ or ‘lighter than’.

1.

The vase is

the ink.

2.

The puppet is

the top.

3.

Jam

The margarine is

4.

the jam.

Pet bottle

Oil container

The pet bottle is

the oil container.

15

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