← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 706 · 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. 1.15 × 32 =
  2. 2.55 × 26 =
  3. 3.24 × 45 =
  4. 4.25 × 6 =
  5. 5.75 × 8 =
  6. 6.28 × 15 =
  7. 7.36 × 45 =
  8. 8.15 × 24 =
  9. 9.24 × 125 =
  10. 10.65 × 40 =
  11. 11.30 × 125 =
  12. 12.32 × 15 =
  13. 13.25 × 14 =
  14. 14.35 × 14 =
  15. 15.45 × 28 =
  16. 16.45 × 36 =
  17. 17.55 × 8 =
  18. 18.26 × 75 =
  19. 19.25 × 34 =
  20. 20.55 × 40 =
  21. 21.15 × 12 =
  22. 22.65 × 28 =
  23. 23.8 × 45 =
  24. 24.75 × 24 =
  25. 25.8 × 15 =
  26. 26.15 × 14 =
  27. 27.35 × 36 =
  28. 28.24 × 35 =
  29. 29.22 × 25 =
  30. 30.24 × 125 =
  31. 31.45 × 16 =
  32. 32.40 × 35 =
  33. 33.45 × 12 =
  34. 34.65 × 32 =
  35. 35.75 × 16 =
  36. 36.26 × 45 =
  37. 37.26 × 75 =
  38. 38.35 × 28 =
  39. 39.14 × 125 =
  40. 40.45 × 28 =

Answer key

  1. 480
  2. 1430
  3. 1080
  4. 150
  5. 600
  6. 420
  7. 1620
  8. 360
  9. 3000
  10. 2600
  11. 3750
  12. 480
  13. 350
  14. 490
  15. 1260
  16. 1620
  17. 440
  18. 1950
  19. 850
  20. 2200
  21. 180
  22. 1820
  23. 360
  24. 1800
  25. 120
  26. 210
  27. 1260
  28. 840
  29. 550
  30. 3000
  31. 720
  32. 1400
  33. 540
  34. 2080
  35. 1200
  36. 1170
  37. 1950
  38. 980
  39. 1750
  40. 1260

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