← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 301 · 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. 2.28 × 125 =
  3. 3.25 × 36 =
  4. 4.65 × 20 =
  5. 5.8 × 15 =
  6. 6.45 × 36 =
  7. 7.65 × 30 =
  8. 8.15 × 34 =
  9. 9.35 × 20 =
  10. 10.15 × 16 =
  11. 11.6 × 75 =
  12. 12.22 × 35 =
  13. 13.8 × 65 =
  14. 14.14 × 35 =
  15. 15.20 × 125 =
  16. 16.18 × 75 =
  17. 17.30 × 65 =
  18. 18.35 × 20 =
  19. 19.55 × 18 =
  20. 20.35 × 18 =
  21. 21.25 × 8 =
  22. 22.15 × 16 =
  23. 23.20 × 75 =
  24. 24.10 × 45 =
  25. 25.36 × 15 =
  26. 26.55 × 20 =
  27. 27.12 × 35 =
  28. 28.14 × 35 =
  29. 29.24 × 35 =
  30. 30.125 × 26 =
  31. 31.15 × 6 =
  32. 32.65 × 20 =
  33. 33.22 × 25 =
  34. 34.26 × 55 =
  35. 35.14 × 35 =
  36. 36.25 × 8 =
  37. 37.34 × 125 =
  38. 38.34 × 25 =
  39. 39.10 × 55 =
  40. 40.65 × 10 =

Answer key

  1. 1050
  2. 3500
  3. 900
  4. 1300
  5. 120
  6. 1620
  7. 1950
  8. 510
  9. 700
  10. 240
  11. 450
  12. 770
  13. 520
  14. 490
  15. 2500
  16. 1350
  17. 1950
  18. 700
  19. 990
  20. 630
  21. 200
  22. 240
  23. 1500
  24. 450
  25. 540
  26. 1100
  27. 420
  28. 490
  29. 840
  30. 3250
  31. 90
  32. 1300
  33. 550
  34. 1430
  35. 490
  36. 200
  37. 4250
  38. 850
  39. 550
  40. 650

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