← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 195 · 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. 1.40 × 55 =
  2. 2.35 × 28 =
  3. 3.25 × 22 =
  4. 4.15 × 10 =
  5. 5.38 × 35 =
  6. 6.34 × 25 =
  7. 7.12 × 55 =
  8. 8.16 × 25 =
  9. 9.75 × 30 =
  10. 10.14 × 25 =
  11. 11.45 × 28 =
  12. 12.25 × 38 =
  13. 13.45 × 30 =
  14. 14.26 × 35 =
  15. 15.45 × 8 =
  16. 16.25 × 16 =
  17. 17.125 × 26 =
  18. 18.24 × 15 =
  19. 19.34 × 15 =
  20. 20.15 × 28 =
  21. 21.35 × 6 =
  22. 22.10 × 65 =
  23. 23.125 × 22 =
  24. 24.18 × 55 =
  25. 25.75 × 6 =
  26. 26.16 × 15 =
  27. 27.38 × 15 =
  28. 28.36 × 25 =
  29. 29.24 × 35 =
  30. 30.65 × 36 =
  31. 31.45 × 18 =
  32. 32.55 × 28 =
  33. 33.14 × 75 =
  34. 34.36 × 45 =
  35. 35.14 × 65 =
  36. 36.125 × 34 =
  37. 37.15 × 28 =
  38. 38.8 × 25 =
  39. 39.125 × 40 =
  40. 40.15 × 26 =

Answer key

  1. 2200
  2. 980
  3. 550
  4. 150
  5. 1330
  6. 850
  7. 660
  8. 400
  9. 2250
  10. 350
  11. 1260
  12. 950
  13. 1350
  14. 910
  15. 360
  16. 400
  17. 3250
  18. 360
  19. 510
  20. 420
  21. 210
  22. 650
  23. 2750
  24. 990
  25. 450
  26. 240
  27. 570
  28. 900
  29. 840
  30. 2340
  31. 810
  32. 1540
  33. 1050
  34. 1620
  35. 910
  36. 4250
  37. 420
  38. 200
  39. 5000
  40. 390

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