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Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 895 · 40 questions
TalentJR

How it works (Double and halve): Find the number ending in 5 and the even number. Double the one ending in 5; halve the even one. Repeat while it helps (25 → 50 → 100), then multiply.

NameDateTime takenScore ___ / 40
  1. 1.125 × 32 =
  2. 2.25 × 28 =
  3. 3.40 × 125 =
  4. 4.32 × 45 =
  5. 5.32 × 75 =
  6. 6.125 × 12 =
  7. 7.15 × 6 =
  8. 8.30 × 125 =
  9. 9.36 × 75 =
  10. 10.15 × 16 =
  11. 11.6 × 75 =
  12. 12.75 × 10 =
  13. 13.8 × 45 =
  14. 14.125 × 28 =
  15. 15.15 × 22 =
  16. 16.15 × 34 =
  17. 17.65 × 40 =
  18. 18.30 × 65 =
  19. 19.55 × 28 =
  20. 20.75 × 28 =
  21. 21.10 × 75 =
  22. 22.125 × 10 =
  23. 23.35 × 12 =
  24. 24.55 × 30 =
  25. 25.65 × 22 =
  26. 26.35 × 32 =
  27. 27.14 × 25 =
  28. 28.40 × 15 =
  29. 29.6 × 15 =
  30. 30.16 × 45 =
  31. 31.45 × 14 =
  32. 32.25 × 24 =
  33. 33.45 × 18 =
  34. 34.55 × 36 =
  35. 35.32 × 25 =
  36. 36.75 × 32 =
  37. 37.6 × 55 =
  38. 38.10 × 15 =
  39. 39.15 × 20 =
  40. 40.18 × 25 =

Answer key

  1. 4000
  2. 700
  3. 5000
  4. 1440
  5. 2400
  6. 1500
  7. 90
  8. 3750
  9. 2700
  10. 240
  11. 450
  12. 750
  13. 360
  14. 3500
  15. 330
  16. 510
  17. 2600
  18. 1950
  19. 1540
  20. 2100
  21. 750
  22. 1250
  23. 420
  24. 1650
  25. 1430
  26. 1120
  27. 350
  28. 600
  29. 90
  30. 720
  31. 630
  32. 600
  33. 810
  34. 1980
  35. 800
  36. 2400
  37. 330
  38. 150
  39. 300
  40. 450

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