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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 919 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.85 × 0.5 =
  2. 2.0.95 × 0.4 =
  3. 3.0.24 × 0.3 =
  4. 4.7.8 × 0.2 =
  5. 5.0.69 × 2.5 =
  6. 6.8.1 × 1.3 =
  7. 7.6.3 × 0.4 =
  8. 8.0.81 × 0.5 =
  9. 9.0.08 × 3.4 =
  10. 10.0.04 × 1.1 =
  11. 11.0.86 × 2.8 =
  12. 12.1.5 × 0.02 =
  13. 13.4.1 × 2.8 =
  14. 14.8.7 × 0.12 =
  15. 15.0.47 × 3.1 =
  16. 16.0.89 × 2.7 =
  17. 17.6.5 × 2.1 =
  18. 18.3.8 × 1.6 =
  19. 19.5.6 × 3.7 =
  20. 20.0.67 × 1.4 =
  21. 21.0.52 × 0.6 =
  22. 22.0.21 × 1.1 =
  23. 23.6.8 × 0.02 =
  24. 24.0.91 × 0.3 =
  25. 25.0.65 × 0.9 =
  26. 26.0.03 × 0.7 =
  27. 27.0.16 × 3.7 =
  28. 28.0.2 × 0.7 =
  29. 29.4.1 × 3.4 =
  30. 30.7.6 × 0.21 =
  31. 31.2.7 × 0.19 =
  32. 32.0.48 × 3.8 =
  33. 33.9.5 × 1.4 =
  34. 34.0.72 × 1.1 =
  35. 35.0.76 × 2.3 =
  36. 36.0.19 × 1.1 =
  37. 37.1.1 × 3.1 =
  38. 38.0.89 × 1.7 =
  39. 39.8.1 × 0.12 =
  40. 40.6.7 × 2.8 =

Answer key

  1. 0.425
  2. 0.38
  3. 0.072
  4. 1.56
  5. 1.725
  6. 10.53
  7. 2.52
  8. 0.405
  9. 0.272
  10. 0.044
  11. 2.408
  12. 0.03
  13. 11.48
  14. 1.044
  15. 1.457
  16. 2.403
  17. 13.65
  18. 6.08
  19. 20.72
  20. 0.938
  21. 0.312
  22. 0.231
  23. 0.136
  24. 0.273
  25. 0.585
  26. 0.021
  27. 0.592
  28. 0.14
  29. 13.94
  30. 1.596
  31. 0.513
  32. 1.824
  33. 13.3
  34. 0.792
  35. 1.748
  36. 0.209
  37. 3.41
  38. 1.513
  39. 0.972
  40. 18.76

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