← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 193 · 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. 1.20 × 55 =
  2. 2.15 × 32 =
  3. 3.8 × 25 =
  4. 4.25 × 22 =
  5. 5.24 × 45 =
  6. 6.55 × 14 =
  7. 7.40 × 55 =
  8. 8.6 × 125 =
  9. 9.6 × 45 =
  10. 10.10 × 35 =
  11. 11.25 × 8 =
  12. 12.38 × 35 =
  13. 13.14 × 75 =
  14. 14.35 × 16 =
  15. 15.6 × 15 =
  16. 16.22 × 65 =
  17. 17.25 × 32 =
  18. 18.15 × 24 =
  19. 19.30 × 15 =
  20. 20.15 × 16 =
  21. 21.30 × 35 =
  22. 22.22 × 55 =
  23. 23.6 × 25 =
  24. 24.25 × 36 =
  25. 25.25 × 14 =
  26. 26.75 × 6 =
  27. 27.18 × 25 =
  28. 28.6 × 65 =
  29. 29.75 × 32 =
  30. 30.25 × 16 =
  31. 31.25 × 28 =
  32. 32.14 × 125 =
  33. 33.75 × 24 =
  34. 34.8 × 35 =
  35. 35.25 × 28 =
  36. 36.75 × 24 =
  37. 37.20 × 35 =
  38. 38.125 × 14 =
  39. 39.125 × 22 =
  40. 40.75 × 26 =

Answer key

  1. 1100
  2. 480
  3. 200
  4. 550
  5. 1080
  6. 770
  7. 2200
  8. 750
  9. 270
  10. 350
  11. 200
  12. 1330
  13. 1050
  14. 560
  15. 90
  16. 1430
  17. 800
  18. 360
  19. 450
  20. 240
  21. 1050
  22. 1210
  23. 150
  24. 900
  25. 350
  26. 450
  27. 450
  28. 390
  29. 2400
  30. 400
  31. 700
  32. 1750
  33. 1800
  34. 280
  35. 700
  36. 1800
  37. 700
  38. 1750
  39. 2750
  40. 1950

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