← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 694 · 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 × 24 =
  2. 2.14 × 125 =
  3. 3.40 × 25 =
  4. 4.26 × 125 =
  5. 5.35 × 28 =
  6. 6.35 × 14 =
  7. 7.40 × 125 =
  8. 8.45 × 8 =
  9. 9.40 × 25 =
  10. 10.75 × 24 =
  11. 11.35 × 22 =
  12. 12.18 × 15 =
  13. 13.8 × 125 =
  14. 14.18 × 25 =
  15. 15.75 × 32 =
  16. 16.15 × 16 =
  17. 17.26 × 65 =
  18. 18.28 × 45 =
  19. 19.12 × 25 =
  20. 20.30 × 15 =
  21. 21.15 × 26 =
  22. 22.125 × 32 =
  23. 23.35 × 38 =
  24. 24.22 × 15 =
  25. 25.28 × 35 =
  26. 26.15 × 28 =
  27. 27.16 × 125 =
  28. 28.8 × 45 =
  29. 29.22 × 45 =
  30. 30.45 × 20 =
  31. 31.14 × 65 =
  32. 32.24 × 45 =
  33. 33.32 × 35 =
  34. 34.125 × 6 =
  35. 35.15 × 14 =
  36. 36.16 × 25 =
  37. 37.15 × 28 =
  38. 38.34 × 45 =
  39. 39.6 × 25 =
  40. 40.55 × 34 =

Answer key

  1. 360
  2. 1750
  3. 1000
  4. 3250
  5. 980
  6. 490
  7. 5000
  8. 360
  9. 1000
  10. 1800
  11. 770
  12. 270
  13. 1000
  14. 450
  15. 2400
  16. 240
  17. 1690
  18. 1260
  19. 300
  20. 450
  21. 390
  22. 4000
  23. 1330
  24. 330
  25. 980
  26. 420
  27. 2000
  28. 360
  29. 990
  30. 900
  31. 910
  32. 1080
  33. 1120
  34. 750
  35. 210
  36. 400
  37. 420
  38. 1530
  39. 150
  40. 1870

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