← Doubling and halving lesson New set →

Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 462 · 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. 1.30 × 55 =
  2. 2.26 × 45 =
  3. 3.28 × 55 =
  4. 4.65 × 26 =
  5. 5.75 × 26 =
  6. 6.125 × 6 =
  7. 7.10 × 75 =
  8. 8.12 × 15 =
  9. 9.15 × 28 =
  10. 10.22 × 15 =
  11. 11.125 × 12 =
  12. 12.45 × 6 =
  13. 13.45 × 24 =
  14. 14.35 × 24 =
  15. 15.35 × 40 =
  16. 16.45 × 8 =
  17. 17.45 × 10 =
  18. 18.125 × 26 =
  19. 19.125 × 18 =
  20. 20.65 × 18 =
  21. 21.16 × 125 =
  22. 22.36 × 65 =
  23. 23.38 × 45 =
  24. 24.25 × 40 =
  25. 25.75 × 16 =
  26. 26.24 × 55 =
  27. 27.25 × 22 =
  28. 28.125 × 32 =
  29. 29.15 × 14 =
  30. 30.25 × 20 =
  31. 31.28 × 25 =
  32. 32.22 × 55 =
  33. 33.15 × 24 =
  34. 34.18 × 45 =
  35. 35.65 × 16 =
  36. 36.38 × 45 =
  37. 37.10 × 75 =
  38. 38.125 × 30 =
  39. 39.65 × 22 =
  40. 40.15 × 10 =

Answer key

  1. 1650
  2. 1170
  3. 1540
  4. 1690
  5. 1950
  6. 750
  7. 750
  8. 180
  9. 420
  10. 330
  11. 1500
  12. 270
  13. 1080
  14. 840
  15. 1400
  16. 360
  17. 450
  18. 3250
  19. 2250
  20. 1170
  21. 2000
  22. 2340
  23. 1710
  24. 1000
  25. 1200
  26. 1320
  27. 550
  28. 4000
  29. 210
  30. 500
  31. 700
  32. 1210
  33. 360
  34. 810
  35. 1040
  36. 1710
  37. 750
  38. 3750
  39. 1430
  40. 150

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