answer keys math w a k ma th part b workbook...teddy bear 18 teddy bear 19 plastic bottle practice...
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ANSWER KEY MATH WORKBOOK
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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.
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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Practice 2: More Picture Graphs
Pages 29–34
1 7 times 2 9 times 3 tails 4 2 more times
5
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
5
6 5 7 4 8 15 9 2
Problem Solving
1 7 boxes 2 Anderson 3 Diaz 4 2 fewer 5 20 boxes
6
Chapter Review/Test
Pages 43–44
1 bar graph 2 fewer 3 more 4 Guitar 5 Drum
6 Jay: 10; Madison: 3; Kimberly: 7
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.
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Hamster Gold sh Dog Cat Rabbit Bird
Each stands for 1 pet.
Grade 1‘s Pets
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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
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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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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
1
2 4 more tiles 3 13; 17 4 1, 5, 9, 13, 17, 21
Chapter Review/Test
Pages 59–60
1
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
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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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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
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+
2 1
9
3 0
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+
6
1 5
2 1
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+
8
3 2
4 0
MIF_Gr1B TE_13.indd 24 3/5/09 6:55:22 PM
+
7
1 6
3 3
1
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+
3
1 9
3 2
1
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–
2 9
2 6
3
MIF_Gr1B TE_13.indd 31 3/5/09 6:55:29 PM
–
3 8
1 0
2 8
MIF_Gr1B TE_13.indd 31 3/5/09 6:55:29 PM
–
3 1
2 0
11
MIF_Gr1B TE_13.indd 31 3/5/09 6:55:29 PM
–
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
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8 2 cars
9
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
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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
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Kinds of Vehicles Tally Number
Cars
Trucks
Buses
6
4
4
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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
1
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
1
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.
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12 o’clock
8 o’clock
4 o’clock
9 o’clock
3 o’clock
•
•
•
•
•
•
•
•
•
•
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•
•
•
•
•
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
MIF_Gr1B TE_17.indd 37 3/5/09 7:23:58 PM
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• • • • • • • • • • • • •
MIF_Gr1B TE_17.indd 35 3/5/09 7:23:57 PM
+
8
33
4 1
MIF_Gr1B TE_17.indd 42 3/5/09 7:24:04 PM
+
4
91
8 3
6
MIF_Gr1B TE_17.indd 42 3/5/09 7:24:04 PM
–
5
6
4
3 9
MIF_Gr1B TE_17.indd 42 3/5/09 7:24:04 PM
–
3
85
1 5
7
MIF_Gr1B TE_17.indd 42 3/5/09 7:24:04 PM
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C A L V E R T E D U C A T I O N
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62
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
5
6 2 coops 7 10 seeds
MIF_Gr1B TE_18.indd 18 3/5/09 7:29:41 PM
✗ ✗
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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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C A L V E R T E D U C A T I O N
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Chapter 19
Money
Practice 1: Penny, Nickel, and Dime
Pages 209–214
1
2 1¢ 3 5¢ 4 10¢ 5 10¢
6
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¢
5
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¢
1¢
dime
penny
MIF_Gr1B TE__19.indd 16 3/6/09 1:44:13 PM
•
•
•
•
•
•
•
•
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64
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
c
40 8 bags
Fish Pasta Soup Chicken
Each stands for 1 child.
MIF_Gr1B TE__19.indd 47 3/6/09 1:44:39 PM
Kinds of Pets Tally Number
Hamster
Cat
Bird
2
6
2
MIF_Gr1B TE__19.indd 47 3/6/09 1:44:39 PM
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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