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Doubling and Halving

Doubling and Halving. Doubling and Halving with basic facts. Category 1. 1 x 16 2 x 8 4 x 4 8 x 2 16 x 1. 1 x 36 2 x 18 4 x 9. 1 x 20 2 x 10 4 x 5. 1 x 24 2 x 12 4 x 6 8 x 3. 1 x 48 2 x 24 4 x 12 8 x 6 16 x 3. 1 x 40 2 x 20 4 x 10 8 x 5. 1 x 12 2 x 6 4 x 3. 1 x 32

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Doubling and Halving

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  1. Doubling and Halving

  2. Doubling and Halving with basic facts. Category 1

  3. 1 x 16 2 x 8 4 x 4 8 x 2 16 x 1

  4. 1 x 36 2 x 18 4 x 9

  5. 1 x 20 2 x 10 4 x 5

  6. 1 x 24 2 x 12 4 x 6 8 x 3

  7. 1 x 48 2 x 24 4 x 12 8 x 6 16 x 3

  8. 1 x 40 2 x 20 4 x 10 8 x 5

  9. 1 x 12 2 x 6 4 x 3

  10. 1 x 32 2 x 16 4 x 8 8 x 4 16 x 2 32 x 1

  11. 1 x 56 2 x 28 4 x 14 8 x 7

  12. Doubling and Halving with 1 x 2-digit and 1 x 3-digit numbers. Category 2

  13. 8 x 16 4 x 32 2 x 64

  14. 8 x 32 4 x 64 2 x 168

  15. 36 x 5 18 x 10 9 x 20

  16. 8 x 125 4 x 250 2 x 500

  17. 84 x 5 42 x 10 21 x 20

  18. 35 x 8 70 x 4 140 x 2

  19. 125 x 8 250 x 4 500 x 2

  20. 345 x 8 690 x 4 1380 x 2

  21. 8 x 29 4 x 58 2 x 116

  22. Doubling and Halving with 2 x 2-digit numbers. Category 3

  23. 3 x 60 6 x 30 12 x 15

  24. 9 x 56 18 x 28 36 x 14

  25. 2 x 280 4 x 140 8 x 70 16 x 35

  26. 104 x 3 52 x 6 26 x 12

  27. 4 x 120 8 x 60 32 x 15

  28. 100 x 4 50 x 8 25 x 16

  29. 112 x 2 56 x 4 28 x 8 14 x 16

  30. 360 x 3 180 x 6 90 x 12 45 x 24

  31. 2 x 1440 4 x 720 8 x 360 16 x 180 32 x 90 64 x 45

  32. For investigation of what happens when you third or triple or quarter and quadruple numbers. Category 4

  33. 9 x 12 3 x 36 1 x 108

  34. 27 x 15 9 x 45 3 x 135 1 x 405

  35. 36 x 18 72 x 9 216 x 3 648 x 1

  36. 15 x 16 60 x 4 240 x 1

  37. 25 x 48 100 x 12 400 x 3 1200 x 1

  38. 64 x 35 16 x 140 4 x 560 1 x 2240

  39. 18 x 12 9 x 24 4.5 x 36 2.25 x 72

  40. 6 x 12 3 x 24 1.5 x 48

  41. 6 x 24 3 x 48 1.5 x 96

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