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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 430 · 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. 1.9.6 × 1.2 =
  2. 2.7.1 × 2.7 =
  3. 3.0.11 × 0.9 =
  4. 4.0.22 × 1.8 =
  5. 5.5.5 × 1.8 =
  6. 6.0.56 × 2.8 =
  7. 7.6.8 × 2.6 =
  8. 8.0.85 × 2.6 =
  9. 9.0.74 × 1.4 =
  10. 10.0.02 × 2.6 =
  11. 11.2.4 × 0.7 =
  12. 12.4.1 × 1.7 =
  13. 13.8.3 × 1.9 =
  14. 14.0.81 × 3.2 =
  15. 15.0.42 × 3.8 =
  16. 16.0.76 × 1.2 =
  17. 17.6.8 × 0.31 =
  18. 18.2.1 × 0.8 =
  19. 19.0.41 × 3.7 =
  20. 20.2.7 × 1.4 =
  21. 21.1.4 × 0.2 =
  22. 22.9.8 × 3.6 =
  23. 23.3.9 × 0.21 =
  24. 24.5.6 × 2.6 =
  25. 25.0.48 × 1.5 =
  26. 26.0.99 × 2.2 =
  27. 27.3.1 × 0.39 =
  28. 28.9.7 × 0.25 =
  29. 29.0.25 × 2.5 =
  30. 30.0.87 × 0.5 =
  31. 31.0.79 × 0.2 =
  32. 32.5.9 × 0.13 =
  33. 33.0.71 × 0.6 =
  34. 34.0.5 × 0.2 =
  35. 35.0.36 × 2.2 =
  36. 36.7.1 × 0.06 =
  37. 37.0.16 × 2.6 =
  38. 38.9.6 × 0.8 =
  39. 39.6.1 × 1.9 =
  40. 40.0.39 × 0.8 =

Answer key

  1. 11.52
  2. 19.17
  3. 0.099
  4. 0.396
  5. 9.9
  6. 1.568
  7. 17.68
  8. 2.21
  9. 1.036
  10. 0.052
  11. 1.68
  12. 6.97
  13. 15.77
  14. 2.592
  15. 1.596
  16. 0.912
  17. 2.108
  18. 1.68
  19. 1.517
  20. 3.78
  21. 0.28
  22. 35.28
  23. 0.819
  24. 14.56
  25. 0.72
  26. 2.178
  27. 1.209
  28. 2.425
  29. 0.625
  30. 0.435
  31. 0.158
  32. 0.767
  33. 0.426
  34. 0.1
  35. 0.792
  36. 0.426
  37. 0.416
  38. 7.68
  39. 11.59
  40. 0.312

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