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Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 88 · 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. 1.10 × 125 =
  2. 2.15 × 30 =
  3. 3.75 × 34 =
  4. 4.34 × 125 =
  5. 5.45 × 12 =
  6. 6.14 × 55 =
  7. 7.36 × 15 =
  8. 8.35 × 6 =
  9. 9.75 × 8 =
  10. 10.25 × 12 =
  11. 11.14 × 15 =
  12. 12.35 × 10 =
  13. 13.32 × 65 =
  14. 14.25 × 36 =
  15. 15.20 × 35 =
  16. 16.34 × 35 =
  17. 17.45 × 16 =
  18. 18.12 × 25 =
  19. 19.15 × 32 =
  20. 20.35 × 28 =
  21. 21.20 × 15 =
  22. 22.45 × 8 =
  23. 23.16 × 25 =
  24. 24.55 × 8 =
  25. 25.34 × 65 =
  26. 26.125 × 16 =
  27. 27.40 × 65 =
  28. 28.30 × 15 =
  29. 29.26 × 25 =
  30. 30.40 × 75 =
  31. 31.35 × 26 =
  32. 32.26 × 15 =
  33. 33.75 × 16 =
  34. 34.35 × 12 =
  35. 35.14 × 35 =
  36. 36.35 × 14 =
  37. 37.12 × 25 =
  38. 38.32 × 15 =
  39. 39.8 × 25 =
  40. 40.25 × 38 =

Answer key

  1. 1250
  2. 450
  3. 2550
  4. 4250
  5. 540
  6. 770
  7. 540
  8. 210
  9. 600
  10. 300
  11. 210
  12. 350
  13. 2080
  14. 900
  15. 700
  16. 1190
  17. 720
  18. 300
  19. 480
  20. 980
  21. 300
  22. 360
  23. 400
  24. 440
  25. 2210
  26. 2000
  27. 2600
  28. 450
  29. 650
  30. 3000
  31. 910
  32. 390
  33. 1200
  34. 420
  35. 490
  36. 490
  37. 300
  38. 480
  39. 200
  40. 950

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