← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 467 · 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. 1.14 × 75 =
  2. 2.40 × 75 =
  3. 3.45 × 20 =
  4. 4.35 × 8 =
  5. 5.75 × 22 =
  6. 6.10 × 65 =
  7. 7.125 × 8 =
  8. 8.15 × 12 =
  9. 9.18 × 55 =
  10. 10.8 × 15 =
  11. 11.14 × 125 =
  12. 12.8 × 25 =
  13. 13.10 × 125 =
  14. 14.25 × 34 =
  15. 15.75 × 40 =
  16. 16.25 × 28 =
  17. 17.8 × 125 =
  18. 18.55 × 40 =
  19. 19.40 × 35 =
  20. 20.75 × 32 =
  21. 21.6 × 55 =
  22. 22.65 × 38 =
  23. 23.125 × 24 =
  24. 24.45 × 14 =
  25. 25.14 × 75 =
  26. 26.65 × 40 =
  27. 27.24 × 65 =
  28. 28.36 × 75 =
  29. 29.16 × 25 =
  30. 30.32 × 15 =
  31. 31.16 × 75 =
  32. 32.125 × 6 =
  33. 33.18 × 75 =
  34. 34.55 × 30 =
  35. 35.125 × 14 =
  36. 36.35 × 26 =
  37. 37.8 × 45 =
  38. 38.15 × 18 =
  39. 39.10 × 35 =
  40. 40.38 × 65 =

Answer key

  1. 1050
  2. 3000
  3. 900
  4. 280
  5. 1650
  6. 650
  7. 1000
  8. 180
  9. 990
  10. 120
  11. 1750
  12. 200
  13. 1250
  14. 850
  15. 3000
  16. 700
  17. 1000
  18. 2200
  19. 1400
  20. 2400
  21. 330
  22. 2470
  23. 3000
  24. 630
  25. 1050
  26. 2600
  27. 1560
  28. 2700
  29. 400
  30. 480
  31. 1200
  32. 750
  33. 1350
  34. 1650
  35. 1750
  36. 910
  37. 360
  38. 270
  39. 350
  40. 2470

Free tables & multiplication lessons, practice and worksheets at talentjr.in/multiplication-tables