answer keys math w a k ma th part b workbook...teddy bear 18 teddy bear 19 plastic bottle practice...

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CALVERT EDUCATION 01MIFAKBWorkbook 53 Answer Keys Part B Math Workbook © Marshall Cavendish Education Chapter 10 Weight Practice 1: Comparing Things Pages 1–6 1 Jansen 2 John 3 as heavy as; as heavy as 4 lighter than; heavier than 5 The toy car is heavier than the buttons. The buttons are lighter than the toy car. 6 The flute is heavier than the bone. The bone is lighter than the flute. 7 8 Answers vary. Check your student’s work for accuracy. 9 Answers vary. 10 ostrich 11 feather 12 tomato; carrot 13 pumpkin; carrot 14 tomato 15 pumpkin 16 tomato Practice 2: Finding the Weight of Things Pages 7–10 1 15 toy bricks 2 20 toy bricks 3 17 toy bricks 4 15 beads 5 20 beads 6 12 beads 7 onion 8 lemon 9 lemon 10 onion 11 10 coins 12 6 coins 13 17 coins 14 pencil case or teddy bear 15 pencil case or plastic bottle 16 plastic bottle 17 pencil case or plastic bottle; teddy bear 18 teddy bear 19 plastic bottle Practice 3: Finding Weight in Units Pages 11–15 1 13 units 2 15 units 3 9 units 4 15 units 5 10 units 6 1 unit 7 10 units 8 5 units 9 toothbrush 10 toothbrush/toothpaste 11 soap 12 toothbrush 13 9 units 14 7 units 15 10 units 16 6 units 17 Box C 18 Box D 19 A/B/C 20 B/D 21 C, A, B, D Math Journal Page 16 1 apples; oranges 2 bread; muffin 3 cup; milk 4 10 units Put On Your Thinking Cap! Pages 17–18 Challenging Practice 1 2 coin 3 bananas; watermelon Problem Solving 1 sunflower, rose, cactus Chapter Review/Test Pages 19–24 1 weight 2 unit 3 heavy 4 lighter 5 as heavy as 6 boy; baby 7 book 8 baseball 9 fish 10 lighter; lighter; lighter 11 pear; strawberry 12 10 units 13 5 units 14 The cube is lighter than the marble. 15 11 16 18 17 6 18 pencil case 19 stapler 20 Possible answers: The pencil case is heavier than the wallet; The wallet is heavier than the stapler; The pencil case is heavier than the stapler. 21 The stapler is lighter than the wallet; The wallet is lighter than the pencil case; The stapler is lighter than the pencil case. 22 6 units 23 2 units 24 4 units 25 onion 26 jalapeno 27 jalapeno, bell pepper, onion Chapter 11 Picture Graphs and Bar Graphs Practice 1: Simple Picture Graphs Pages 25–28 1 3 2 April 3 5 sunflowers 4 8 roses 5 3 tulips 6 5 more roses 7 2 fewer tulips 8 16 flowers 9 3 toy planes 10 10 toy cars 11 6 toy trains 12 toy cars 13 toy planes 14 19 toys 15 4 more toy cars 16 toy planes; toy cars 17 2 coins 18 4 coins 19 2 more coins 20 9 coins 21 Wednesday apple orange

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Page 1: Answer Keys MATH W A K Ma th Part B Workbook...teddy bear 18 teddy bear 19 plastic bottle Practice 3: Finding Weight in Units Pages 11–15 1 13 units 2 15 units 3 9 units 4 15 units

ANSWER KEY MATH WORKBOOK

C A L V E R T E D U C A T I O N

01MIFAKBWorkbook

53

Answer Keys Part B

MathWorkbook

© Marshall Cavendish Education

Chapter 10

Weight

Practice 1: Comparing Things

Pages 1–6

1 Jansen 2 John 3 as heavy as; as heavy as 4 lighter

than; heavier than 5 The toy car is heavier than the

buttons. The buttons are lighter than the toy car.

6 The flute is heavier than the bone. The bone is lighter

than the flute.

8 Answers vary. Check your student’s work for accuracy.

9 Answers vary. 10 ostrich 11 feather 12 tomato;

carrot 13 pumpkin; carrot 14 tomato 15 pumpkin

16 tomato

Practice 2: Finding the Weight of

Things

Pages 7–10

1 15 toy bricks 2 20 toy bricks 3 17 toy bricks

4 15 beads 5 20 beads 6 12 beads 7 onion 8 lemon

9 lemon 10 onion 11 10 coins 12 6 coins 13 17 coins

14 pencil case or teddy bear 15 pencil case or plastic

bottle 16 plastic bottle 17 pencil case or plastic bottle;

teddy bear 18 teddy bear 19 plastic bottle

Practice 3: Finding Weight in Units

Pages 11–15

1 13 units 2 15 units 3 9 units 4 15 units 5 10 units

6 1 unit 7 10 units 8 5 units 9 toothbrush

10 toothbrush/toothpaste 11 soap 12 toothbrush

13 9 units 14 7 units 15 10 units 16 6 units 17 Box C

18 Box D 19 A/B/C 20 B/D 21 C, A, B, D

Math Journal

Page 16

1 apples; oranges 2 bread; muffin 3 cup; milk 4 10 units

Put On Your Thinking Cap!

Pages 17–18

Challenging Practice

2 coin 3 bananas; watermelon

Problem Solving

1 sunflower, rose, cactus

Chapter Review/Test

Pages 19–24

1 weight 2 unit 3 heavy 4 lighter 5 as heavy as 6 boy;

baby 7 book 8 baseball 9 fish 10 lighter; lighter; lighter

11 pear; strawberry 12 10 units 13 5 units 14 The cube

is lighter than the marble. 15 11 16 18 17 6 18 pencil

case 19 stapler 20 Possible answers: The pencil case is

heavier than the wallet; The wallet is heavier than the

stapler; The pencil case is heavier than the stapler.

21 The stapler is lighter than the wallet; The wallet is

lighter than the pencil case; The stapler is lighter than the

pencil case. 22 6 units 23 2 units 24 4 units 25 onion

26 jalapeno 27 jalapeno, bell pepper, onion

Chapter 11

Picture Graphs and Bar Graphs

Practice 1: Simple Picture Graphs

Pages 25–28

1 3 2 April 3 5 sunflowers 4 8 roses 5 3 tulips

6 5 more roses 7 2 fewer tulips 8 16 flowers 9 3 toy

planes 10 10 toy cars 11 6 toy trains 12 toy cars

13 toy planes 14 19 toys 15 4 more toy cars

16 toy planes; toy cars 17 2 coins 18 4 coins

19 2 more coins 20 9 coins 21 Wednesday

apple

orange

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MIF_TG_1B_10.indd 29 3/4/09 9:00:27 PM

Page 2: Answer Keys MATH W A K Ma th Part B Workbook...teddy bear 18 teddy bear 19 plastic bottle Practice 3: Finding Weight in Units Pages 11–15 1 13 units 2 15 units 3 9 units 4 15 units

ANSWER KEY MATH WORKBOOK

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Practice 2: More Picture Graphs

Pages 29–34

1 7 times 2 9 times 3 tails 4 2 more times

6 goldfish 7 2 hamsters 8 2 more cats 9 rabbits; goldfish

10 rabbits 11 goldfish 12 birds and hamsters; cats and

dogs 13 3 tigers 14 6 giraffes 15 giraffes 16 lions

17 3 more rhinoceroses 18 2 fewer tigers 19 6

20 14 21 by bus 22 bicycle 23 2 24 3 25 2 glasses

26 apple juice 27 4 28 5

Practice 3: Tally Charts and Bar Graphs

Pages 35–37

1 5 2 4 3 forks 4 3 5 6 red, 9 blue, 15 yellow 6 6 red

balloons 7 9 blue balloons 8 6 more yellow balloons

9 red; yellow 10 7 cucumber, 3 pumpkin, 5 sunflower

11 

12 5 13 4 14 15 15 cucumber

Math Journal

Page 38

Answers vary.

Put On Your Thinking Cap!

Pages 39–42

Challenging Practice

1 17 2 10 3 20 4 Tina: 7; Eva: 3, Pedro: 5

6 5 7 4 8 15 9 2

Problem Solving

1 7 boxes 2 Anderson 3 Diaz 4 2 fewer 5 20 boxes

Chapter Review/Test

Pages 43–44

1 bar graph 2 fewer 3 more 4 Guitar 5 Drum

6 Jay: 10; Madison: 3; Kimberly: 7

8 7 9 Madison

Chapter 12

Numbers to 40

Practice 1: Counting to 40

Pages 45–48

1 10, 20, 30, 31, 32, 33, 34 2 10, 20, 30, 31, 32, 33, 34,

35, 36 3 Circle the first 2 groups; 28. 4 Circle the first

three groups; 35. 5 Circle the first three groups; 39.

6 Circle the first two groups; 26. 7 Circle the first two

groups; 25. 8 23 9 30 10 34 11 40 12 25 13 39 14 32

15 29 16 twenty-one 17 thirty-seven 18 twenty-two

Alonso‘s Tosses

Each stands for 1 toss.

MIF_TG_1B_11.indd 17 3/4/09 8:59:02 PM

Hamster Gold sh Dog Cat Rabbit Bird

Each stands for 1 pet.

Grade 1‘s Pets

MIF_TG_1B_11.indd 17 3/4/09 8:59:02 PM

Silverware Tally Number

Spoon

Fork

Knife 4

7

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Cucumber

Pumpkin

Sun ower

Seed Packages Abby Bought

1 2 3 4 5 6 7 80 9 10

Number of Packages

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Tina

Eva

Pedro

Crackers the Children Brought to School

1 2 3 4 5 6 7 80 9 10

Chi

ldre

n

Number of Crackers

MIF_TG_1B_11.indd 26 3/4/09 8:59:07 PMNumber of Boxes of Cards

Anderson

Bailey

Diaz

Cards Sold by the Art Club

1 2 3 4 5 6 7 80 9 10N

ames

of

Fam

ilies

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Jay

Madison

Kimberly

Bottles for Recycling

1 2 3 4 5 6 7 80 9 10

Chi

ldre

n

Number of Bottles11

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Page 3: Answer Keys MATH W A K Ma th Part B Workbook...teddy bear 18 teddy bear 19 plastic bottle Practice 3: Finding Weight in Units Pages 11–15 1 13 units 2 15 units 3 9 units 4 15 units

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19 forty 20 thirty-five 21 thirty-one 22 23 23 38

24 30 25 35 26 27 27 30 28 20 29 30

Practice 2: Place Value

Pages 49–50

1 2 tens 5 ones 2 3 tens 7 ones 3 28 4 39 5 26 = 2 tens

6 ones; 20 + 6 = 26; Chart: 2 tens 6 ones. 6 40 = 4 tens

0 ones; 40 + 0 = 40; Chart: 4 tens 0 ones.

Practice 3: Comparing, Ordering, and

Patterns

Pages 51–56

1 30 2 21 3 28 4 29 5 30 6 39 7 22 8 37 9 29

10 24 11 33 12 27 13 37 14 33 15 Set A; 32 is greater

than 29. 16 Set B; 24 is less than 36. 17 32 18 39

19 21 20 25 21 28 22 38 23 34 24 39 25 24, 32, 36

26 23 27 38 28 23; 27; 38 29 23 30 38 31 26 32 39

33 26 34 24 35 40 36 18, 19, 20, 21, 22, 23, 24

37 30, 31, 32, 33, 34, 35, 36 38 28, 29, 30, 31, 32, 33, 34

39 33, 32, 31, 30, 29, 28, 27 40 30, 32, 34, 36, 38, 40

41 27, 25, 23, 21, 19, 17, 15 42 20, 23, 26, 29, 32, 35

43 33, 30, 27, 24, 21, 18 44 0, 10, 20, 30, 40 45 19

Put On Your Thinking Cap!

Pages 57–58

Challenging Practice

1 10 2 32 3 Accept 10; 12; 13; 20; 21; or 23.

4 Accept 30; 31; or 32.

Problem Solving

2 4 more tiles 3 13; 17 4 1, 5, 9, 13, 17, 21

Chapter Review/Test

Pages 59–60

2 24 3 36 4 24 5 30 6 25 7 29 8 10 9 33 10 35 11 9

12 35, 21, 16, 9 13 17, 20, 23, 26, 29, 32 14 23 15 21

16 2 tens 17 8 ones

Chapter 13

Addition and Subtraction to 40

Practice 1: Addition Without

Regrouping

Pages 61–64

1 35 2 29 3 36 4 Number Bond: 30 and 2. 32 + 6

= 3 tens 2 ones + 6 ones = 3 tens 8 ones = 38

5 Number Bond: 30 and 7. 37 + 2 = 3 tens 7 ones

+ 2 ones  = 3 tens 9 ones = 39 6 Number Bond: 10 and 6.

16 + 2 = 18 7 Number Bond: 20 and 4. 24 + 3 = 27

8 2 tens 9 ones

9 3 tens 5 ones

10 3 tens 7 ones

11 29 12 28 13 40 14 64

15 37 16 38

Practice 2: Addition with Regrouping

Pages 65–68

1 37 + 3 = 3 tens 7 ones + 3 ones = 3 tens 10 ones = 40

2 25 + 8 = 2 tens 5 ones + 8 ones = 2 tens 13 ones = 33

3 26 + 6 = 2 tens 6 ones + 6 ones = 2 tens 12 ones = 32

4 5 + 29 = 5 ones + 2 tens 9 ones = 2 tens 14 ones = 34

5 19 + 21 = 1 ten 9 ones + 2 tens 1 one = 3 tens 10 ones

= 40 6 23 7 33 8 31 9 23 10 30 11 40

27 • • thirty-eight

36 • • forty

24 • • twenty-seven

38 • • twenty-four

40 • • thirty-six

MIF_TG_1B_12.indd 28 3/4/09 9:01:44 PM

Tens Ones

27

2

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Tens Ones

25

10

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Tens Ones

14

23

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+

2 5

1 2

3 7

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+

1 4

2 4

3 8

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Page 4: Answer Keys MATH W A K Ma th Part B Workbook...teddy bear 18 teddy bear 19 plastic bottle Practice 3: Finding Weight in Units Pages 11–15 1 13 units 2 15 units 3 9 units 4 15 units

ANSWER KEY MATH WORKBOOK

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12 25 13 30 14 21

15 40 16 33 17 32

18 21 19 34 20 35 21 32 22 40 23 40 24 30 25 35

Answer: RAIN-DEER

Practice 3: Subtraction Without

Regrouping

Pages 69–72

1 21 2 31 3 30 4 21 5 35 6 30 7 38 – 3 = 3 tens

8 ones  – 3 ones = 3 tens 5 ones = 35 8 26 – 4 = 2 tens

6 ones – 4 ones = 2 tens 2 ones = 22 9 1 ten 4 ones

10 2 tens 4 ones 11 3 tens 3 ones 12 3 tens 0 ones

13 2 tens 0 ones 14 1 ten 3 ones 15 2 tens 5 ones

16 2 tens 0 ones

17 3 18 28 19 11

20 10 21 31 22 30

23 37

Practice 4: Subtraction with Regrouping

Pages 73–76

1 17 ones 2 15 ones 3 10 ones 4 17 5 16 6 28 7 27

8 9 9 2

10 16 2

1

5

6

1 11 29 3

2

7

9

6 12 7 2

1 8

7

5

13 13 3

1

1

8

3

1 14 18 3

1

1

4

8

2 15 13 3

1

1

7

3

0

16 29 17 12 18 27 19 27 20 20 21 15

Answer: SEA-SAW

22 7 23 4

Practice 5: Adding Three Numbers

Pages 77–78

1 15 2 22 3 23 4 17 5 18 (10 + 8 = 18)

6 19 (10 + 9 = 19) 7 18 8 17 9 16

Practice 6: Real-World Problems:

Addition and Subtraction

Pages 79–82

1 12 + 5 = 17; 17 trophies 2 15 – 7 = 8; 8 stickers

3 14 – 9 = 5; 5 toy cars 4 6 + 5 = 11; 11 friendship

bracelets 5 18 – 14 = 4; 4 more snowballs

6 17 + 13 = 30; 30 hairclips 7 22 – 13 = 9; 9 walnuts

8 36 – 17 = 19; 19 more muffins

Put On Your Thinking Cap!

Pages 83–86

Challenging Practice

1  2 

3 Answers vary. Samples: Add 20, subtract 2. Add 18,

subtract 0. 4 Answers vary. Samples: Add 5, subtract 13.

Add 0, subtract 8.

Problem Solving

1 Roller Coaster, Merry-Go-Round 2 Bumper Car,

Merry-Go-Round 3 Roller Coaster, Flying Elephant,

Merry-Go-Round

Chapter Review/Test

Pages 87–88

1 count back 2 regroup 3 counting on 4 place-value

chart 5 39 6 37 7 24 8 18 9 18 10 22 11 30 – 4 = 26;

26 balloons 12 23 + 5 = 28; 28 bookmarks

Cumulative Review for

Chapters 10 to 13

Pages 89–98

1 as heavy as 2 lighter than 3 heavier than

4 tomato; pineapple 5 2 more cars 6 10 cars and trucks

+

1 8

7

2 5

MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM

+

2 1

9

3 0

MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM

+

6

1 5

2 1

MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM

+

8

3 2

4 0

MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM

+

7

1 6

3 3

1

MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM

+

3

1 9

3 2

1

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2 9

2 6

3

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3 8

1 0

2 8

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3 1

2 0

11

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2 7

1 7

01

MIF_Gr1B TE_13.indd 31 3/5/09 6:55:29 PM

3 6

5

13

MIF_Gr1B TE_13.indd 31 3/5/09 6:55:29 PM

8

8

03

3

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1

3 5

4 2

0

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1

3 5

6 4

2

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7

Cars Trucks Buses

Each stands for 1 vehicle.

Vehicles in a Parking Lot

MIF_Gr1B TE_13.indd 52 3/5/09 6:55:50 PM

8 2 cars

10 

11 3 units 12  13 10 toy bricks 14 toy shovel, pail,

towel 15 24 16 37 17 25 18 30 19 thirty-seven

20 forty 21 27 22 26 23 3 tens 8 ones 24 27

25 33 26 25 27 29 28 10 29 33 30 9 31 35

32 21 33 9, 16, 21, 35 34 17, 20, 23, 26, 29, 32

35 28, 32, 36, 40 36 23 37 21 38 2 39 8 40 28 41 34

42 24 43 23 44 16 45 22 46 39 47 40 48 31 49 35

50 12 51 18 52 4 53 17 54 20 – 4 = 16; 16 stamps

55 30 + 6 = 36; 36 balloons

Chapter 14

Mental Math Strategies

Practice 1: Mental Addition

Pages 99–102

1 17 2 16 3 36 4 28 5 29 6 39 7 38 8 39 9 28 10 31

11 22 12 34 13 26 14 39 15 27 16 33 17 24 18 36

19 9 20 15 21 11 22 17 23 29 24 38 25 17

Practice 2: Mental Subtraction

Pages 103–104

1 3 2 3 3 8 4 6 5 9 6 4 7 24 8 24 9 21 10 35 11 30

12 30 13 12 14 3 15 5 16 16 17 7 18 19

Put On Your Thinking Cap!

Pages 105–106

Challenging Practice

1 Samples: PAL; DAY; HAT; FIR; LAP; PIE

2 Answers vary. Samples: HOLE; HOT; COAT; COIN

3 Answers vary.

Problem Solving

Method 1

Method 2 Bicycles Tricycles Wheels in all

1 5 2 + 15 = 172 4 4 + 12 = 16

1 2 3 4 5 6

MIF_Gr1B TE_14.indd 20 3/5/09 7:11:06 PM

There are 2 bicycles and 4 tricycles.

Chapter Review/Test

Pages 107–108

1 mentally 2 doubles fact 3 29 4 37 5 38 6 35 7 13

8 11 9 2 10 2 11 9 12 9 13 7 14 7 15 11 16 32

17 11 18 17 19 23 20 19

Chapter 15

Calendar and Time

Practice 1: Using a Calendar

Pages 109–112

1 7 2 Sunday 3 Tuesday 4 Thursday 5 Saturday

6 Answers vary. 7 Answers vary. 8 Answers vary.

9–11

January February March

April May June

July August September

October November December

blue circle

color green

MIF_Gr1B TE_15.indd 15 3/5/09 7:12:50 PM

Kinds of Vehicles Tally Number

Cars

Trucks

Buses

6

4

4

MIF_Gr1B TE_13.indd 52 3/5/09 6:55:50 PM

Number of Vehicles

Cars

Trucks

Buses

Vehicles in a Parking Lot

Kin

ds o

f V

ehic

les

0 1 2 3 4 5 6 7 8

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12 October 13 Tuesday 14 31 15 Thursday

16 October 11, 2010 17 Saturday

18 

19 winter 20 fall 21 summer

Practice 2: Telling Time to the Hour

Pages 113–118

2 9 o’clock 3 12 o’clock 4 4 o’clock 5 5 o’clock

6 6 o’clock 7 7 o’clock 8 8 o’clock 9 correct

10 incorrect 11 incorrect 12 incorrect 13 correct

Practice 3: Telling Time to the Half Hour

Pages 119–123

2 incorrect 3 correct 4 correct 5 incorrect 6 incorrect

7 10 o’clock 8 half past 11 9 half past 12 10 3 o’clock

11 half past 5

Math Journal

Page 124

Answers vary.

Put On Your Thinking Cap!

Pages 125–126

Challenging Practice

1 September 14 2 5 3 September 17 4 Friday

5a Thursday b October 1 6a Monday b August 31

Problem Solving

Order: 2, 4, 3, 1

Chapter Review/Test

Pages 127–128

1 days; week 2 months; year 3 calendar 4 October is

the tenth month of the year. 5 February is the only

month with 28 or 29 days. 6 Sunday is the first day of

the week. 7 Friday comes before Saturday. 8 Fall is the

season that comes before winter. 9 11 o’clock; half past 3;

5 o’clock 10 Answers vary; possible answer: half past 8.

11 Answers vary; possible answer: 3 o’clock. 12 Answers

vary. 13 May 19, 2010 14 March 22

summer

spring

winter

fall

8.

MIF_Gr1B TE_15.indd 16 3/5/09 7:12:51 PM

12 o’clock

8 o’clock

4 o’clock

9 o’clock

3 o’clock

MIF_Gr1B TE_15.indd 20 3/5/09 7:12:59 PM

half past 5•

half past 2

half past 9

half past 7

half past 8

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Cumulative Review for

Chapters 14 and 15

Pages 129–134

1 12 2 15 3 17 4 27 5 29 6 36 7 33 8 28 9 6 10 9

11 21 12 25 13 16 14 25 15 10 16 7 17 12 months

18 June 19 November 20 7 months 21 summer, fall,

winter 22 7 o’clock 23 half past 2 24 half past 10

25 6 o’clock 26 8 o’clock 27 half past 3 28 half past 8

29 incorrect 30 correct 31 Thursday 32 30

33 September 17 34 Wednesday 35 Tuesday; Monday

36 4, 11, 18, 25 37 7 more 38 7 days 39 4 + 4 + 4 = 12;

12 days

Chapter 16

Numbers to 100

Practice 1: Counting to 100

Pages 135–138

1 50, 51, 52 2 61, 62, 63 3 10, 20, 30, 40, 50, 60, 70, 80,

81, 82, 83, 84 4 49 5 68 6 95 7 87 8 56 9 73 10 92

11 

12 64 13 75 14 3 15 80 16 45 17 8 18 Estimate:

Answers vary. Count: 54. 19 Estimate: Answers vary.

Count: 41.

Practice 2: Place Value

Pages 139–142

1 78 = 7 tens 8 ones 2 36 = 3 tens 6 ones 3 92 = 9 tens

2 ones 4 57 = 5 tens 7 ones 5 84 = 8 tens 4 ones

6 93 = 9 tens 3 ones; 90 + 3 = 93 7 87 = 8 tens 7 ones;

80 + 7 = 87 8 4 tens 3 ones 9 8 tens 6 ones 10 6 tens

4 ones 11 9 tens 7 ones 12 7 tens 5 ones

Practice 3: Comparing, Ordering, and

Patterns

Pages 143–146

1 56 2 68 3 76 4 72 5 55 6 95 7 60 8 90 9 80

10 70 11 87 12 92 13 54 14 76 15 86 16 98 17 59

18 68 19 79 20 48 21 62 22 91 23 49; 72 24 69; 90

25 99, 89, 54, 45 26 100 27 46 28 46, 67, and 73

29 92 and 100 30 46 31 100 32 50, 51, 52, 53, 54, 55,

56, 57, 58 33 73, 72, 71, 70, 69, 68, 67 34 85, 87, 89, 91,

93, 95 35 99, 97, 95, 93, 91, 89 36 50, 60, 70, 80, 90, 100

37 93, 83, 73, 63, 53, 43, 33

Put On Your Thinking Cap!

Pages 147–150

Challenging Practice

1 78 2 65 3 79

Problem Solving

1 41, 46, 51, 56, 61, 66, 71. Counting on in steps of 5

from the number before it.

2 30, 36, 42, 48, 54, 60, 66. Adding 6 to the number

before it.

3 10, 20, 30, 40, 50, 60, 70. Counting on in steps of 10.

4 81, 78, 75, 72, 69, 66, 63. Counting back in steps of 3.

5 90, 85, 80, 75, 70, 65, 60. Counting back in steps of 5.

6 80, 70, 60, 50, 40, 30, 20. Counting back in steps of 10.

Chapter Review/Test

Pages 151–152

1 compare 2 estimate 3 number line 4 98

5 seventy-four 6 87 7 6 tens 4 ones 8 60 9 76 10 69

11 Estimate: Answers vary. Count: 25.

Chapter 17

Addition and Subtraction to 100

Practice 1: Addition Without

Regrouping

Pages 153–156

1 88 (85, 86, 87, 88) 2 68 (62, 63, 64, 65, 66, 67, 68)

3 57 4 99 5 88 6 49 7 65 8 77

40 fty-one

51 seventy-two

72 forty

88 eighty-eight

56 sixty- ve

65 fty-six

90 thirty-three

33 ninety

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9 87 10 95

11 70 12 83 13 77 14 98 15 87 16 59

17 79 18 99

19 

Practice 2: Addition with Regrouping

Pages 157–162

1 53 2 65 3 71 4 63 5 82 6 91

7 70 8  97

9 85 10 55 11 100 12 62 13 81 14 60 15 90

16 33 17 94

18 71 19 64 20 85 21 86 22 66 23 100 24 88 25 76

26 91

Answer: TEDDY BEAR

27 29 28 52 29 57 30 80 31 80 32 72 33 83 34 68

35 70 36 77 37 80

Answer: STARFISH

Practice 3: Subtraction Without

Regrouping

Pages 163–166

1 92 (95, 94, 93, 92) 2 83 (88, 87, 86, 85, 84, 83)

3 73 (79, 78, 77, 76, 75, 74, 73) 4 55 5 65 6 71

7 62 8 93 9 81

10 73 11 94

12 75 13 19 14 50 15 20 16 36 17 43

18 33 19 44

20 

Practice 4: Subtraction with

Regrouping

Pages 167–172

1 56 2 88 3 69 4 79 5 48 6 74

7 63 8 87

9 85 10 14 11 27 12 47 13 6 14 34 15 17

16 57 17 57

+

8 2

8 7

5

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+

9 3

2

9 5

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+

5 6

2 3

7 9

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+

8 6

1 3

9 9

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89 • •

85 • •

77 • •

42 • •

90 • •

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+

6

0

6

7

4

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+

9 7

8

8 9

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+

1 9

1 4

3 3

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+

5 8

3 6

9 4

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7 9

6

7 3

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9 9

5

9 4

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5 6

2 3

3 3

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8 6

4 2

4 4

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• •48

83 – 10

• •52

77 – 21

• •80

90 – 10

• •56

84 –32

• •60

94 – 34

• •73

68 – 20

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7 2

9

6 3

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4

9 1

8 7

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8 3

2 6

5 7

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9 5

3 8

5 7

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18 90 19 

20 48 21 69 22 59 23 66 24 10 25 76 26 40 27 73

28 40 29 47 30 8 31 26 32 2 33 2

Put On Your Thinking Cap!

Pages 173–174

Challenging Practice

Answers vary.

Problem Solving

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55. She will have

55 stickers in 10 days.

Or:

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

11

11

11

1111

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11 + 11 + 11 + 11 + 11 = 55

Chapter Review/Test

Pages 175–176

1 59 2 80 3 77 4 75 5 83 6 80 7 62 8 60 9 73 10 76

11 66 12 22

Cumulative Review for

Chapters 16 and 17

Pages 177–184

1 10, 20, 30, 40, 50, 60, 70, 80, 81, 82, 83, 84.

2 fifty-seven 3 ninety-three 4 48 5 69 6 94 7 70

8 Estimate: Answers vary. Count: 45. 9 56 = 5 tens 6 ones

10 86 = 8 tens 6 ones; 80 + 6 = 86 11 2 tens 7 ones

12 8 tens 3 ones 13 56 14 62 15 57 16 61 17 70; 75;

80; 85; 90; 95 18 Set A is 7 more than Set B. 19 Set A

20 80 21 54 22 35 23 89 24 The least number is 15;

The greatest number is 41. 25 50, 67, 76 26 73, 72, 71,

70, 69, 68, 67 27 50, 60, 70, 80, 90, 100 28 89 29 90

30 83 31 64

32 41 33 83 34 91 35 20 36 56

37 84 38 39 39 15 40 26, 16 41 64

42 Answers vary. Sample: 33 + 67 = 100 43 36

Chapter 18

Multiplication and Division

Practice 1: Adding the Same Number

Pages 185–190

1 10; 10 2 20; 20 3 12; 12 4 16; 16

5 2 + 2 + 2 + 2 + 2 + 2 = 12. 6 twos = 12. There are

12 snails in all. 6 4 + 4 + 4 + 4 = 16. 4 fours = 16.

There are 16 shrimps in all. 7 8 crabs; 4 twos = 8

8 25 seahorses; 5 fives = 25 9 A starfish has 5 arms.

6 fives = 30. 6 starfishes have 30 arms. 10 3 fives = 15.

3 dresses have 15 buttons. 11 One flower has 6 petals.

6 sixes = 36. 6 flowers have 36 petals. 12 Each plant has

4 leaves. 5 fours = 20. 5 plants have 20 leaves.

13 An octopus has 8 arms. 4 eights = 32. 4 octopuses

have 32 arms.

Practice 2: Sharing Equally

Pages 191–198

1 6 fish crackers; 2 2 12 fish crackers; 4 3 4 mice; 2 tubs;

2 mice 4 15 monkeys; 3 trees; 5 monkeys 5 4 dogs; 4 dog

houses; 1 dog 6 12 cats; 3 baskets; 4 cats

7 5 flowers

53 – 19

73 – 30

81 – 46

60 – 27

70 – 30

90 – 5

54 84 34

43 56 54

34 35 45

43 33 47

85 53 67• • • • • • • • • •

• • • • • • • •

• • • • • • • • • • • • •

• • • • • • •

• • • • • • • • • • • • •

40 63 33• • • • • • • • • • • • •

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+

8

33

4 1

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+

4

91

8 3

6

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5

6

4

3 9

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3

85

1 5

7

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8 3 books

9 6 in each bag

10 4 marbles

11 2 toys

12 2 balloons

13 6 coins

14 4 pencils

Practice 3: Finding the Number of

Groups

Pages 199–204

1 4 groups

2 5 groups

3 3 groups

4 6 groups

5 Answers vary. Sample: Circle the apples in groups of 5.

There are 4 groups of 5 apples

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6 5 cubs 7 3 coin banks 8 4 pages 9 2 bowls 10 3 boxes

11 10 squirrels

Put On Your Thinking Cap!

Pages 205–206

Challenging Practice

1 20 erasers 2 4 3 5 4 2 5 5

Problem Solving

1 4; 6; 10 shapes 2 2; 3; 5 shapes

Chapter Review/Test

Pages 207–208

1 groups 2 same 3 6; 6 4 20; 20

6 2 coops 7 10 seeds

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✗ ✗

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5 threes 4 fours

4 + 4 + 4 + 4 3 + 3 + 3 + 3 + 3

7 + 7 + 7 7 threes

3 + 3 + 3 + 3 + 3 + 3 + 3 3 sevens

7 twos 14

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Chapter 19

Money

Practice 1: Penny, Nickel, and Dime

Pages 209–214

2  1¢ 3 5¢ 4 10¢ 5 10¢

7 3 dimes 8 15 coins 9 4 fewer dimes 10 2 more pennies

11 5¢ 12 35¢ 13 30¢ 14 15¢ 15 23¢ 16 nickel 17 dime

18 0 dimes, 1 nickel, 3 pennies. Answers vary.

Accept 0 dimes, 0 nickels, 8 pennies.

19 1 dime, 1 nickel, 2 pennies. Answers vary.

Accept 0 dimes, 3 nickels, 2 pennies; 0 dimes, 2 nickels,

7 pennies; 0 dimes, 1 nickel, 12 pennies; 0 dimes,

0 nickels, 17 pennies.

20 2 dimes, 0 nickels, 2 pennies. Answers vary.

Accept 1 dime, 2 nickels, 2 pennies; 0 dimes, 4 nickels,

2 pennies; 0 dimes, 3 nickels, 7 pennies; 0 dimes,

2 nickels, 12 pennies; 0 dimes, 1 nickel, 17 pennies;

0 dimes, 0 nickels, 22 pennies.

21 Accept 1 nickel, 4 pennies; 9 pennies.

22 Accept 1 dime, 1 nickel, 3 pennies; 3 nickels,

3 pennies; 2 nickels, 8 pennies; 1 nickel, 13 pennies;

18 pennies.

23 Accept 2 dimes, 3 pennies; 1 dime, 2 nickels,

3 pennies; 1 dime, 1 nickel, 8 pennies; 4 nickels,

3 pennies; 3 nickels, 8 pennies; 2 nickels, 13 pennies;

1 nickel, 18 pennies; 23 pennies.

Practice 2: Quarter

Pages 215–218

1 quarter; 25¢ 2 10 pennies 3 5 nickels 4 5 pennies

5 1 nickel and 5 pennies 6 5 pennies 7 3 nickels and

10 pennies 8 2 nickels 9 Answers vary. Accept 2 dimes,

1 nickel or 2 dimes, 5 pennies.

10–14 Answers vary. Samples are given. 10 1 quarter

11 2 dimes, 1 nickel 12 1 dime, 3 nickels 13 5 nickels

14 25 pennies 15 quarter 16 dime 17 penny 18 dime

19 5 nickels 20 10 pennies

Practice 3: Counting Money

Pages 219–226

1 81¢ 2 90¢ 3 71¢ 4 83¢

6 10¢, 10¢, 10¢, 5¢, 1¢, 1¢ 7 25¢, 10¢, 5¢, 5¢ 8 Answers

vary. Sample: 3 quarters and 1 nickel. 9 2 quarters and

2 nickels 10 Answers vary. Sample: 2 quarters, 1 dime,

1 nickel. 11 Answers vary. Sample: 1 quarter, 2 dimes,

1 nickel. 12 1 dime, 1 nickel, 4 pennies 13 Answers

vary. Sample: 1 quarter, 1 dime. 14 Answers vary.

Sample: 2 quarters, 4 dimes, 2 pennies. 15 82¢; Answers

vary. 16 90¢; Answers vary. 17–18 Answers vary.

Practice 4: Adding and Subtracting

Money

Pages 227–237

1 44¢ 2 60¢ 3 30¢ 4 38¢ 5 50¢ + 40¢ = 90¢

6 21¢ + 25¢ = 46¢ 7 8¢ + 30¢ = 38¢ 8 17¢ + 44¢ = 61¢

9 13¢ + 51¢ = 64¢ 10 6¢ + 81¢ = 87¢ 11 38¢ + 40¢ = 78¢

12 20¢ + 10¢ = 30¢. He spends 30¢.

13 10¢ + 10¢ + 40¢ = 60¢. She spends 60¢.

14 50¢ + 10¢ + 5¢ = 65¢. She spends 65¢.

15 30¢ + 30¢ = 60¢. They spend 60¢ in all. 16 35¢

17 30¢ 18 55¢ 19 64¢ 20 50¢ – 35¢ = 15¢

21 70¢ – 25¢ = 45¢ 22 90¢ – 60¢ = 30¢

23 95¢ – 35¢ = 60¢ 24 55¢ – 50¢ = 5¢

25 50¢ – 30¢ = 20¢ 26 85¢ – 80¢ = 5¢ 27 50¢ – 45¢ = 5¢

penny

nickel

dime

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Coin Value Name

Five cent

Ten cent

One cent

10¢

dime

penny

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28 3 quarters is 75¢. 75¢ – 70¢ = 5¢. She gets 5¢ in

change. 29 90¢ – 84¢ = 6¢. She has 6¢ left.

30 9¢ + 89¢ = 98¢. He had 98¢ at first.

31 79¢ – 25¢ = 54¢. Andrew pays 54¢ less than Eve.

32 89¢ – 32¢ = 57¢. Derrick needs 57¢ more.

33 60¢ – 25¢ = 35¢. The pencil is 35¢ more than the

eraser. 34 65¢ + 34¢ = 99¢. He buys the sandwich and

the apple. 35 70¢ 36 20¢ 37 20¢ 38 90¢ 39 crackers

Math Journal

Page 238

Answers vary.

Put On Your Thinking Cap!

Pages 239–240

Challenging Practice

1 2 quarters 2 1 quarter, 2 dimes, 1 penny 3 1 dime,

1 nickel, 4 pennies 4 Yes. He will get change. 5 Yes.

He will get change. 6 No. He needs 24¢ more.

Page 241

Dimes: 40¢, Nickels: 15¢, Pennies: 5¢.

40¢ + 15¢ + 5¢ = 60¢

Pages 242–244

Problem Solving

1 1 quarter, 2 dimes, 1 nickel 2 60¢ + 15¢ = 75¢; 75¢ is

less than 95¢. She buys Pen A. 3 60¢ + 12¢ = 72¢; 72¢ is

more than 70¢ but less than 90¢. He buys the bananas.

45¢

Quarter Dime Nickel

1 2 0

4 1 1 2

5 1 0 4

6 0 4 1

7 0 3 3

8 0 2 5

9 0 1 7

10 0 0 9

Chapter Review/Test

Pages 245–246

1 dime 2 quarter 3 less 4 penny 5 nickels 6 dime

7 nickel 8 penny 9 quarter 10 Answers vary. Accept

2 dimes, 1 nickel; 1 dime, 3 nickels; or 0 dimes, 5 nickels.

11 Answers vary. Accept 2 nickels, 0 pennies; 1 nickel,

5 pennies; or 0 nickels, 10 pennies. 12 55¢ 13 58¢

14 95¢ 15 19¢ 16 64¢ – 25¢ = 39¢. He has 39¢ left.

17 52¢ + 19¢ + 23¢ = 94¢. She spends 94¢.

Cumulative Review for

Chapters 18 and 19

Pages 247–252

1 24; 24; 24 2 16; 16; 16 3 5 + 5 + 5 + 5 = 20; 4 fives = 20

4 18; 6; 3 5 4 sandwiches 6 4 toy soldiers 7 2 pillows

8 3 groups 9 4 flowers 10 6 vases 11 3 vases 12 5¢

13 3¢ 14 1 dime, 1 nickel, 2 pennies 15 5 nickels

16 2 dimes and 1 nickel or 2 dimes and 5 pennies

17 2 quarters, 2 nickels, 4 pennies 18 81¢ 19 42¢ 20 30¢

21 90¢ – 18 = 72¢ 22 2 quarters, 1 dime, 4 pennies

End-of-Year Review

Pages 253–263

1 C 2 B 3 A 4 D 5 C 6 A 7 C 8 A 9 C 10 C 11 C

12 D 13 C 14 B 15 A 16 C 17 D 18 A 19 D

20 eleven 21 eighty-seven 22 54 23 26 24 Bag B,

Bag C, Bag A 25 8 units 26 10 units 27 watermelon;

apple 28 half past 9 29 3 o’clock 30 fifty-seven

31 75, 41, 29, 18 32 27; 17 33 65 34 18 35 triangle

36 45, 50, 55, 60, 65, 70, 75, 80, 85 37a first b behind

38a  b  Pasta

39  a 10 b cat

40 8 bags

Fish Pasta Soup Chicken

Each stands for 1 child.

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Kinds of Pets Tally Number

Hamster

Cat

Bird

2

6

2

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Hamster

Cat

Bird

Pets

1 2 3 4 5 6 7 8 9 100

Kin

ds o

f Pe

ts

Number of Animals

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