Ms. Morrill's 3rd Grade Class
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Math  Answers!

Lesson 6-3 & 6-4

11/16/2017

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6-3 was Wednesday's classwork
Reteaching 6-3
  1. 24
  2. 32
  3. 20
  4. 36
  5. 4
  6. 12
  7. 28
  8. 24
  9. 0
  10. 16
  11. Answers will vary. Possible answer: Multiply 2x8=16 and add 16 to itself to get 32.

Practice 6-3
  1. 8
  2. 20
  3. 12
  4. 16
  5. 40
  6. 24
  7. 4
  8. 12
  9. 0
  10. 28
  11. 40
  12. 4
  13. 8
  14. 36
  15. 32
  16. 2x7
  17. 32 people
  18. 36 tickets
  19. 40 practices
  20. The commutative property of multiplication states that the order of the factors does not change the product, so 5x4=20.
  21. (C) 20

6-4 is Thrusday's homework
Reteaching 6-4
  1. 14
  2. 42
  3. 63
  4. 24
  5. 48
  6. 49
  7. 12
  8. 56
  9. 21
  10. 36
  11. 30
  12. 28
  13. 54
  14. 21
  15. 42
  16. Sample Answer: No, 5x4 and 1x4 is 5 groups of 4 plus 1 group of 4. That is 6 groups of 4, not 6 groups of 8.

Practice 6-4
  1. 30
  2. 18
  3. 48
  4. 21
  5. 70
  6. 28
  7. 24
  8. 35
  9. 56
  10. 36
  11. 42
  12. 60
  13. 70
  14. 49
  15. 12
  16. 7x9
  17. 21 days
  18. 42 slices
  19. 48 people
  20. Sample Answer: Add the product 1x6 to 30. 30+6=36, so 6x6=36
  21. (D) 28 minutes
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