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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 393 · 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. 1.9.3 × 0.19 =
  2. 2.0.31 × 2.9 =
  3. 3.7.5 × 2.5 =
  4. 4.0.82 × 1.1 =
  5. 5.8.1 × 1.6 =
  6. 6.0.81 × 3.8 =
  7. 7.2.2 × 3.8 =
  8. 8.0.47 × 1.7 =
  9. 9.3.5 × 1.1 =
  10. 10.7.4 × 0.09 =
  11. 11.0.22 × 0.6 =
  12. 12.0.91 × 0.7 =
  13. 13.4.7 × 1.7 =
  14. 14.0.95 × 1.1 =
  15. 15.0.33 × 3.2 =
  16. 16.0.16 × 1.1 =
  17. 17.0.39 × 3.5 =
  18. 18.0.45 × 2.1 =
  19. 19.9.1 × 3.4 =
  20. 20.0.06 × 1.5 =
  21. 21.0.71 × 1.8 =
  22. 22.0.64 × 2.9 =
  23. 23.0.12 × 2.1 =
  24. 24.0.18 × 2.6 =
  25. 25.2.4 × 2.8 =
  26. 26.0.95 × 1.9 =
  27. 27.2.5 × 0.02 =
  28. 28.1.5 × 0.37 =
  29. 29.0.74 × 2.7 =
  30. 30.0.53 × 3.5 =
  31. 31.1.1 × 0.04 =
  32. 32.0.31 × 2.9 =
  33. 33.0.25 × 1.1 =
  34. 34.0.85 × 1.8 =
  35. 35.0.59 × 3.5 =
  36. 36.3.4 × 0.08 =
  37. 37.7.6 × 0.23 =
  38. 38.0.58 × 3.1 =
  39. 39.0.84 × 0.5 =
  40. 40.3.9 × 2.9 =

Answer key

  1. 1.767
  2. 0.899
  3. 18.75
  4. 0.902
  5. 12.96
  6. 3.078
  7. 8.36
  8. 0.799
  9. 3.85
  10. 0.666
  11. 0.132
  12. 0.637
  13. 7.99
  14. 1.045
  15. 1.056
  16. 0.176
  17. 1.365
  18. 0.945
  19. 30.94
  20. 0.09
  21. 1.278
  22. 1.856
  23. 0.252
  24. 0.468
  25. 6.72
  26. 1.805
  27. 0.05
  28. 0.555
  29. 1.998
  30. 1.855
  31. 0.044
  32. 0.899
  33. 0.275
  34. 1.53
  35. 2.065
  36. 0.272
  37. 1.748
  38. 1.798
  39. 0.42
  40. 11.31

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