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Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 117 · 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. 1.26 × 35 =
  2. 2.8 × 125 =
  3. 3.65 × 36 =
  4. 4.26 × 45 =
  5. 5.12 × 125 =
  6. 6.25 × 40 =
  7. 7.12 × 15 =
  8. 8.16 × 15 =
  9. 9.65 × 26 =
  10. 10.8 × 35 =
  11. 11.35 × 34 =
  12. 12.6 × 25 =
  13. 13.75 × 6 =
  14. 14.55 × 40 =
  15. 15.25 × 8 =
  16. 16.24 × 25 =
  17. 17.75 × 28 =
  18. 18.30 × 15 =
  19. 19.75 × 30 =
  20. 20.24 × 25 =
  21. 21.22 × 25 =
  22. 22.28 × 45 =
  23. 23.45 × 12 =
  24. 24.36 × 15 =
  25. 25.45 × 16 =
  26. 26.25 × 12 =
  27. 27.25 × 18 =
  28. 28.14 × 45 =
  29. 29.32 × 45 =
  30. 30.45 × 16 =
  31. 31.15 × 8 =
  32. 32.36 × 65 =
  33. 33.38 × 65 =
  34. 34.24 × 125 =
  35. 35.35 × 16 =
  36. 36.55 × 10 =
  37. 37.10 × 15 =
  38. 38.25 × 12 =
  39. 39.125 × 38 =
  40. 40.15 × 12 =

Answer key

  1. 910
  2. 1000
  3. 2340
  4. 1170
  5. 1500
  6. 1000
  7. 180
  8. 240
  9. 1690
  10. 280
  11. 1190
  12. 150
  13. 450
  14. 2200
  15. 200
  16. 600
  17. 2100
  18. 450
  19. 2250
  20. 600
  21. 550
  22. 1260
  23. 540
  24. 540
  25. 720
  26. 300
  27. 450
  28. 630
  29. 1440
  30. 720
  31. 120
  32. 2340
  33. 2470
  34. 3000
  35. 560
  36. 550
  37. 150
  38. 300
  39. 4750
  40. 180

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