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Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 584 · 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 × 16 =
  2. 2.36 × 75 =
  3. 3.30 × 75 =
  4. 4.38 × 125 =
  5. 5.45 × 22 =
  6. 6.125 × 40 =
  7. 7.40 × 35 =
  8. 8.24 × 25 =
  9. 9.20 × 45 =
  10. 10.125 × 12 =
  11. 11.18 × 25 =
  12. 12.25 × 26 =
  13. 13.14 × 65 =
  14. 14.25 × 28 =
  15. 15.65 × 22 =
  16. 16.10 × 15 =
  17. 17.10 × 45 =
  18. 18.26 × 75 =
  19. 19.15 × 10 =
  20. 20.75 × 32 =
  21. 21.65 × 32 =
  22. 22.15 × 20 =
  23. 23.32 × 35 =
  24. 24.32 × 45 =
  25. 25.55 × 6 =
  26. 26.30 × 65 =
  27. 27.125 × 26 =
  28. 28.75 × 14 =
  29. 29.26 × 55 =
  30. 30.25 × 22 =
  31. 31.15 × 30 =
  32. 32.75 × 18 =
  33. 33.25 × 18 =
  34. 34.55 × 20 =
  35. 35.125 × 28 =
  36. 36.36 × 55 =
  37. 37.75 × 24 =
  38. 38.10 × 55 =
  39. 39.75 × 14 =
  40. 40.36 × 125 =

Answer key

  1. 2000
  2. 2700
  3. 2250
  4. 4750
  5. 990
  6. 5000
  7. 1400
  8. 600
  9. 900
  10. 1500
  11. 450
  12. 650
  13. 910
  14. 700
  15. 1430
  16. 150
  17. 450
  18. 1950
  19. 150
  20. 2400
  21. 2080
  22. 300
  23. 1120
  24. 1440
  25. 330
  26. 1950
  27. 3250
  28. 1050
  29. 1430
  30. 550
  31. 450
  32. 1350
  33. 450
  34. 1100
  35. 3500
  36. 1980
  37. 1800
  38. 550
  39. 1050
  40. 4500

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