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 )
,!7IJ8B0-hbccfj! 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
7/16/12 9:49 AM
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
10 Math Pri 1B 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
10 Math Pri 1B 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
11 Math Pri 1B.indd 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
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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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