ANSWER KEY
T7: PROBLEM OF THE DAY 1. $3.54 2. 0.6
11.
12.
13.
3. 270 grams 4. 4,223 5. P = l + l + w + w A = l x w 6. 3 4 = 6 8 Regular octagon 7.
14.
15. 96 square centimeters 16. 14 square inches 17. 72 square inches 18. 180 square meters 19. 27 square inches 20. 90 square inches
8. 309 × 2 9. l = 192 units 10. 214 + 2(65) = 344 feet 11. 7 × 4 = t 12. 0 1 13. 3.13 inches longer 14. Subtraction Division 1 2
1 1
2
PAGE T9: DYNADASH: GRADE 4 1. P = 16 units 2. A = 15 square units 3. P = 20 units 4. A = 24 square units 5. P = 36 units 6. A = 45 square units 7. P = 36 units 8. A = 77 square units 9. P = 32 units 10. A = 63 square units
Multiplication Addition
15. 7 8 16. Obtuse angles are > 90° 875 1,000 =
Acute angles are < 90° Right angles are = 90°
17. 30.1 tiddlywinks 18. About $0.30 19. 1 2 20. The perimeter of a square is greater.
11. w = 3 units 12. l = 16 units 13. l = 17 units 14. w = 9 units 15. A = 144 square units
PAGE T8: DYNADASH: GRADE 3 1. 2 square units
2. 6 square units 3. 4 square units 4. 10 square units 5. 5 square units 6. 12 square units 7. 12 square units 8. 16 square units 9. 20 square units 10. 20 square units
PAGE T10: DYNADASH: GRADE 5 1. 90 cubic units
2. 56 cubic units 3. 64 cubic units 4. 350 cubic units 5. 36 cubic units 6. 50 cubic units 7. 384 cubic units 8. 252 cubic units 9. 132 cubic units 10. 270 cubic units
DYNAMATH TEACHER’S GUIDE T11
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