Math Gr 2, Vol 3 Teacher Resources and Answer Key

Name 1. 1/2; 2. 1/8; 3. 1/4; 4. 1/4; 5. 1/2; 6. 1/6 7. 1/2; 8. 1/2; 9. 3/4; 10. 1/4; 11. 1/2 Page 57 Yum, Yum, Gum! 2/2 matches triangle, 2/3 matches circle, 2/12 matches rectangle; color 1/2 circle, color the whole rectangle Page 58 1/5 of the circle, 4/5 of the rectangle, 3 ants, 2 spiders, 0 bees, 5 worms Page 59 2/10, 6/10, 2/10, 6/10, 7/10 384 R 57 73 22 new laugh open sink 75 86 47 Page 41

Page 10: Yum, Yum, Gum! water A-125, E-206, W-634, T-519, C-922, N-390, D-411, R-817 Practice Page 15: Students should color 73. Quick Review 1. > 4. < 2. < 5. < 3. > 6. > Practice Page 16: Date If the number is Color the space Yellow Red Orange Green Purple 85 > 100 and < 250 > 250 and < 400 > 400 and < 550 > 550 and < 600 > 600 and < 750 22 34 Color Key 85 85 85 85 34 16 Page 36

Students should circle 20, 34, 46, 58, and 62. Students should draw an X on 15, 27, 59, 81, and 93. Quick Review Page 32 Date

16

40 G

Comparing Numbers

e 25

10 Answer Key

1. 4 2. 3 3. 4 Practice Page 10: Mixed Practice Name Answer three problems in a row to get Tic-Tac-Math! 18 8 10

54

87

I’ve Got Your Number!

close

11 7 4

2

5

47

7

38

7

13

54 87

26

9

5

6

2

38

old

20 Y

14

8

75

54

8

12 9 3

26 54 29

29

Learning Session 1 Page 8: Great Graphing Fill in the missing numbers. 424 _____ 426 _____ On the back of this paper, draw these colors in the order listed. • A red line first • A yellow line last Activity: R, B, G, Y _____ _____ 430 26

9 4 5

This is a doubles fact:

10 8 2

425 427 428 429 431 433

4

Page 53 the rectangle 7 3

2 + 2 = 4

left

Answers will vary. 29

80 O

89

Write three more doubles facts.

26

26

• A blue line second • A green line third 38 38

_____ 432 _____

54

87

26

54

cry

413 O

86

23

8 9 10

717 P

225 Y G 34 73 34 555 155 Y

22

87

87

87

ages, Grade 2 © 2015 • Scholastic Teaching Resources

Write some odd numbers.

What is:

This domino shows 9.

16 69

Make three more dominoes that show 9. 6, 3; 4, 5; 3, 6 29 29

710 P

580 G

•10 more than 6? ____

right

, 34th, 55th, 7, 7; 9, 9; 5, 5; 8, 8 e 26

float

111 Y

______ ______ ______ ______ ______ ______ Circle the largest number you wrote. Answers will vary.

23

89

460 O

649 P

•10 more than 59? ____

220 639

686 P

Name Check child’s coloring; 14 days Page 33 Date Fishy Fun Find the answer to each problem.

571 G

•10 more than 210? ____

271 R

277

599 G

1 2 3 4 5 6 7

•10 more than 629? ____

11

402 O

Place Value

fractions one half 248 Y Check child’s coloring. Page 37 A. 39 – 7 = 32; B. 54 – 1 = 53; C. 87 – 6 = 81; D. 73 – 3 = 70; E. 25 – 4 = 21; F. 42 – 2 = 40; G. 98 – 7 = 91; H. 66 – 5 = 61; 4, 7, 5 Page 38 _______ 1. 4 + 10 = 14 2. 10 – 6 = 4 3. 12 – 8 = 4 4. 8 + 2 + 4 = 14 5. 8 – 8 = 0 Bonus Even Learning Session 4 Page 15: Riding on Air ________ 1 5 The box with 53 should be colored yellow. The box with 32 should be colored orange. The box with 74 should be colored red. Page 39 identifying fractions 42, 90, 76, 32, 82, 63, 81; 50, 35, 21, 21, 41, 90, 53; 30, 80, 20, 70, 60, 65, 74; 22 196 Y 101 Y 329 R 395 R Adding 3 1-Digit Numbers Name 3 2 3 4 2 6 4

Answers will vary. Page 42

Solve. 15 – 5 = _______ 14 – 4 = _______ 13 – 3 = _______ 12 – 2 = _______ 11 – 1 = _______ 10 10 10 10 10

Fill in the missing numbers. 2 + _______ = 10 _______ + 7 = 9 4 + _______ = 8 _______ + 2 = 7 8 2 4 5

Use these numbers to make: • the smallest 3-digit number. _______ • the largest 3-digit number. _______ 1 3 7 137 731 Color the space

Color each fraction.

p. 271

p. 283 1. 2 2. 3 3. 2 4. 4 fish 5. 7 kids 6. 3 plums p. 284 Answers will vary depending on length of paper clip. Answers will vary. p. 285 1. 6 2. 4 3. 8 4. 3 5. 10 6. 2 7. 14 8. 12 9. 11 10. 17 Date

p. 277

one third

34 + 13 = 47, 21 + 52 = 73, 47 + 10 = 57; 75 – 34 = 41, 62 – 21 = 41, 47 – 13 = 34 Page 43 A. Sunday; B. 89; C. Monday; D. 24; E. 79; F. 22; Sunday, Tuesday,

547 227 428 233 336 107 If the number has a 270 473 354 450 291 282 Practice Page 11: Color Key

50, 222, 415,

17 36 84

3456789101112

16 1 or 3 in the ones place 2 or 3 in the hundreds place 1 or 2 in the thousands place

Orange Yellow Red

-829, 826, – 5 = 0; D. 5 + 3 = 8; – 3 = 2; F. 9 + 5 = 14 e 27 rst flower should be d.; B. 8 + 9 = 17;

18

100 Math Practice Pages, Grade 2 © 2015 • Scholastic Teaching Resources 78 29 59 14 48

100 Math Practice Pages, Grade 2 © 2015 • Scholastic Teaching Resources

the whole Practice Page 17: a seasick zebra P-16, S-14, B-18, I-13, Z-15, U-7, E-9, C-11, K-17, T-12, R-10, A-8 Practice Page 18: Billy’s Baseball Caps Look at the sum in the middle of each hat tree. Then help Billy fill in the numbers on his caps. He wants the three numbers on each side of the tree to add up to the sum in the middle. Use only the numbers in the key. For each tree, the numbers on two caps have already been filled in. Hint: A number cannot be used more than once on each tree. Key 1 2 3 4 5 6 Learning Session 3 Page 14: LEGO Math

one fourth

88 24 35 66 98

2,048 R

p. 272 1. I 2. U 3. A 4. E 5. O 6. Y 123

1,750 R

18 43 77 38 88

O

3,214 Y

Write the fraction for each shaded part.

p. 273 , 12, 13, 13; B. 12, 1, 11; C. 17, 15, 15, D. 14, 14, 14, 16 k child’s coloring. e 28 H-70, I-65, 60, V-40, 2, 11, 10, 9, 8, 7 , 4, 6, 8, 10, 12 , 6, 9, 12, 15, 18 3, 11, 9, 7, 5, 3 e 29 2; 3, 5, 4; 6, 4, 10; wers will vary. e 30 Date

Learning Session 2 Page 9: Comparing and Ordering 3-digit Numbers 3 2 7 9 6 6 278 141 681 2,912 4,173 4,310 O O O Y R 99 57 87

78 65 56 46 26

1/4 1/3 1/2 1/6

Saturday Page 44

p. 286 1. A: 3 B: 8 2. C: 5 D: 7 3. E: 2 F: 5 4. G: 6 H: 6 6 1 4

________ p. 278 For each circle, color halves red. Color thirds yellow. Color fourths blue.

Difference: 5 Difference: 2 34, 85, 26, 57; star; 71, 88, 42, 76, 85; light; 76, 63, 26, 85; heat; 71, 88, 13, 63; life Page 45 Difference: 3

1,455 R

100 Math Practice Pages, Grade 2 © 2015 • Scholastic Teaching Resources Page 34 93 + 6 = 99, 82 + 4 = 86, 14 + 5 = 19, 21 + 7 = 28, 53 + 6 = 59; 45 + 4 = 49, 73 + 3 = 76, 36 + 3 = 39, 61 + 5 = 66, 32 + 7 = 39; 4 + 7 + 5 + 3 + 6 = 25 Page 35

< > < > > <

Difference: 0 5. I: 7 J: 15 Difference: 8

1. 354, 405, 530, 545 2. 814, 819, 914, 948 3. 728, 783, 857, 875 4. 470, 467, 462, 460 5. 838, 808, 380, 308 6. 652, 526, 500, 265 Practice Page 12: H O W O L D A R E Y O U? Students should write their age on the line. Quick Review 17 1. 9, 2 2. 0, 6 Practice Page 13:

________

p. 287 6 ¢

I am the only mammal that can fly.

57 ¢ 89 ¢ 90 ¢ 78 79

31

54

95 37

14 ¢ 35 ¢

78

78 78 78

I am a large bird but I cannot fly.

86

78

86

24

100 Math Practice Pages, Grade 2 © 2015 • Scholastic Teaching Resources

p. 274 • Students should use blue to color the boxes with the following numbers, then use the same color to trace the line that connects these boxes: 1,348; 1,879; 5,675; 7,641; 1,243; 4,372 • Students should use green to color the boxes numbers < 123 numbers From 124 to 170 numbers > 170 106 112 99 7 with the following numbers, then use the same color to trace the line that connects all of these boxes: 1,532; 7,166; 4,187; 7,198; 6,534; 8,523 129 144 150 161 170 132 173 188 192 203 367 501 + 6 = 26 + 6 = 58 + 6 = 97 + 6 p. 275 1. 189 2. 100 3. 213 4. 50 • Students should use red to color the boxes with the following numbers, then use the same color to trace the line that connects all of these boxes: 3,610; 3,485; 2,757; 3,904; 2,808; 2,651 Copyright © Scholastic Inc. 1 7 tens ones tens ones 97 20 26 95 18 24 + 2 + 5 = 38 + 5 = 66 + 5 = 99 + 2 = 89 + 2 = 18 + 2 = 26 + 3 = 97 + 3 = 29 + 3 = 48 + 4 = 59 + 4 = 36 + 4 = 87 61 94 33 45 26 94 + 3 83 32 55 + 4 91 52 20 + 5 24 16 87 + 2

86 86

40 ¢ 98 ¢ 1. 89 ¢ 2. 72 ¢ 3. 66 ¢ 31

8 Practice Page 19: Answers will vary. Check students’ work. Practice Page 20: mailbox O-25, M-73, R-51, X-46, Y-74, D-61, F-38, L-90, A-89, B-68, N-57, I-36 12 16 p. 288 30 ¢ 30 ¢ 54 95 86 78 37 37 54 24

I can weigh ove 250 pounds.

79

45 12 + 2 + 5 = 10; 4 + 5 + 6; 6; 7 + 2 = 9; 6 – 2 7 + 4 + 5 + 3 + 2 = + 7 + 6 + 3 + 2 = 19 e 31 70 240 230 220 210

p. 279 6

62

I am the fastest of all animals.

53

40 ¢ 60 ¢ 53

70 ¢ 70 ¢

90 ¢ 80 ¢

9

49 49 49

I swim like a fish, but I am really a mammal.

12 15

62

20 1. 8, 8 2. 10,10 3. 18, 18 p. 280 1. 200 2. 75 3. 19, 65, 90

70 ¢ 40 ¢ 30 ¢

40 ¢ 30 ¢ 10 ¢

90 ¢ 50 ¢ 40 ¢

Page 46

280

dividing into groups 27, 74, 41, 65; 27, 70, 42, 53; 15, 23, 11, 33; 20, 2, 15, 31; 22 Check child’s coloring. Page 40

tens ones 1 4

49

45

290

43 87

$4 $9 $7 $2 $6 $4 $2 $3 $3 69 65 39 64

tens ones 1 6

p. 276 305, 308, 350, 358, 380, 385, 503, 508, 530, 538, 580 tens ones 1 5

9 p. 281 1. 24 2. 32 3. 4 4. 5

282

ges, Grade 2 © 2015 • Scholastic Teaching Resources

tens ones 1 3

For each batch of cookies you have 20 raisins. Put the same number

1 9

p. 282

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