Page 54: Through the Tunnels 9 hundreds 3 tens, 7 hundreds 1 ten; 5 hundreds 6 tens, 3 hundreds 2 tens, 4 hundreds 9 tens, 6 hundreds 5 tens; 570; 804 Page 29
812
Mercury
332
Answer Key (continued)
Pluto
633
Earth
212
• S tudents 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 Learning Session 15 Page 44: Flying Butterflies
Uranus
555
Page 34
600
Venus
832
453
503
800
542
842
766
830
Neptune
971
716
1. 49; Y 2. 25; B 3. 24, 26; W, O 4. 58; P
941
802
660
920
Jupiter
459
752
756
522
904
Moon
184
5. 58, 49; P, Y 6. 24, 58; W, P Catalog Fun Page 48: Money Word Problems 1. 10¢ 2. ball and yo-yo 3. bell and yo-yo 4. 3¢ 5. 25¢ Learning Session 17 Page 52: Problem Solving 1. 200 2. 75 3. 19, 65, 90 Learning Session 18 Page 53: Place Value to Hundreds and Regrouping
701
Comet
388
Problems will vary. Page 30 Learning Session 19 Page 58: Hungry Otters 1. Otter 3 2. 2 3. 6 4. Otter 2 and Otter 3 Learning Session 20 Page 59: How Many Teeth? A. $1.49 + $.50 + $.75 + $1.22 = $3.96; B. $1.72 + $.65 + $1.17 = $3.54; C. $1.86 + $1.84 + $.84 + $1.07 = $5.61; D. $1.53 + $1.90 + $1.22 + $.84 = $5.49; E. $1.86 + $.50 + $1.17 = $3.53; F. $1.49 + $.86 + $.75 = $3.10 Page 31 A. 123 + 406 + 406 = 935, orange; B. 209 + 81 + 147 + 181 + 72 = 690, green; C. 146 + 266 + 120 + 139 + 82 = 753, purple; D. 1. 5 2. 30 3. Alligator 4. Horse 5. 60 teeth Learning Session 21 Page 62: Pocket Change 1. dime, dime, nickel 2. quarter, dime, dime, penny 3. dime, dime, penny 4. quarter, quarter, nickel, nickel 180 + 169 + 308 + 122 = 779, yellow; E. 154 + 154 + 188 + 93 + 82 + 170 = 841, red; F. 107 + 173 + 38 + 280 + 38 + 54 + 78 =
900, 800, 700, 400, 300, 200, Subtract 100.; 500, 300, 100, 200.; 800, 600 Subtract 200. Page 35
2. 8 hundreds 7 tens 3. 4 hundreds 5 tens 4. 7 hundreds 4 tens 5. 9 hundreds 8 tens 7. 7 hundreds 16 tens 8. 1 hundred 15 tens 9. 3 hundreds 13 tens 10. 8 hundreds 10 tens
42
344
79
469
157
129
83 53
768, blue Page 32
319
53
900
12
319
40 tens, 20 tens, 70 tens, 50 tens; 10 tens, 90 tens,
420
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