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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 582 · 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. 1.0.65 × 3.1 =
  2. 2.2.5 × 2.1 =
  3. 3.2.2 × 1.5 =
  4. 4.8.6 × 3.1 =
  5. 5.8.1 × 0.08 =
  6. 6.6.1 × 3.1 =
  7. 7.0.69 × 1.4 =
  8. 8.4.1 × 0.8 =
  9. 9.0.28 × 3.5 =
  10. 10.0.59 × 0.6 =
  11. 11.6.1 × 1.3 =
  12. 12.7.4 × 0.04 =
  13. 13.0.02 × 2.4 =
  14. 14.0.51 × 2.6 =
  15. 15.0.66 × 3.9 =
  16. 16.0.95 × 2.1 =
  17. 17.0.7 × 1.9 =
  18. 18.0.71 × 3.1 =
  19. 19.0.91 × 3.1 =
  20. 20.8.5 × 1.4 =
  21. 21.1.8 × 0.03 =
  22. 22.0.26 × 3.9 =
  23. 23.0.29 × 0.3 =
  24. 24.9.3 × 1.2 =
  25. 25.4.5 × 0.7 =
  26. 26.0.73 × 1.2 =
  27. 27.0.67 × 1.4 =
  28. 28.7.2 × 3.8 =
  29. 29.0.7 × 0.32 =
  30. 30.4.7 × 2.1 =
  31. 31.0.57 × 2.2 =
  32. 32.0.83 × 0.9 =
  33. 33.0.07 × 2.6 =
  34. 34.7.3 × 1.5 =
  35. 35.0.3 × 0.38 =
  36. 36.1.3 × 0.04 =
  37. 37.0.48 × 1.2 =
  38. 38.9.1 × 0.13 =
  39. 39.0.41 × 1.9 =
  40. 40.0.7 × 0.25 =

Answer key

  1. 2.015
  2. 5.25
  3. 3.3
  4. 26.66
  5. 0.648
  6. 18.91
  7. 0.966
  8. 3.28
  9. 0.98
  10. 0.354
  11. 7.93
  12. 0.296
  13. 0.048
  14. 1.326
  15. 2.574
  16. 1.995
  17. 1.33
  18. 2.201
  19. 2.821
  20. 11.9
  21. 0.054
  22. 1.014
  23. 0.087
  24. 11.16
  25. 3.15
  26. 0.876
  27. 0.938
  28. 27.36
  29. 0.224
  30. 9.87
  31. 1.254
  32. 0.747
  33. 0.182
  34. 10.95
  35. 0.114
  36. 0.052
  37. 0.576
  38. 1.183
  39. 0.779
  40. 0.175

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