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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 651 · 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. 1.9.1 × 0.28 =
  2. 2.9.1 × 0.31 =
  3. 3.0.21 × 1.3 =
  4. 4.2.9 × 2.9 =
  5. 5.0.02 × 3.3 =
  6. 6.0.8 × 0.37 =
  7. 7.0.21 × 1.2 =
  8. 8.9.1 × 2.2 =
  9. 9.0.22 × 1.5 =
  10. 10.4.7 × 3.9 =
  11. 11.3.1 × 3.6 =
  12. 12.1.1 × 0.09 =
  13. 13.3.8 × 0.9 =
  14. 14.6.7 × 3.8 =
  15. 15.0.34 × 3.3 =
  16. 16.8.1 × 0.38 =
  17. 17.0.38 × 1.8 =
  18. 18.1.6 × 0.22 =
  19. 19.4.7 × 0.8 =
  20. 20.2.1 × 3.6 =
  21. 21.0.58 × 2.3 =
  22. 22.0.05 × 1.1 =
  23. 23.0.62 × 2.1 =
  24. 24.0.26 × 0.4 =
  25. 25.0.7 × 0.39 =
  26. 26.7.9 × 2.6 =
  27. 27.2.4 × 0.31 =
  28. 28.0.34 × 2.8 =
  29. 29.0.74 × 1.1 =
  30. 30.2.4 × 0.25 =
  31. 31.0.75 × 2.5 =
  32. 32.0.64 × 1.8 =
  33. 33.9.8 × 0.26 =
  34. 34.2.2 × 0.27 =
  35. 35.3.9 × 2.7 =
  36. 36.3.2 × 0.02 =
  37. 37.6.9 × 3.1 =
  38. 38.6.8 × 0.11 =
  39. 39.1.7 × 0.9 =
  40. 40.7.7 × 0.13 =

Answer key

  1. 2.548
  2. 2.821
  3. 0.273
  4. 8.41
  5. 0.066
  6. 0.296
  7. 0.252
  8. 20.02
  9. 0.33
  10. 18.33
  11. 11.16
  12. 0.099
  13. 3.42
  14. 25.46
  15. 1.122
  16. 3.078
  17. 0.684
  18. 0.352
  19. 3.76
  20. 7.56
  21. 1.334
  22. 0.055
  23. 1.302
  24. 0.104
  25. 0.273
  26. 20.54
  27. 0.744
  28. 0.952
  29. 0.814
  30. 0.6
  31. 1.875
  32. 1.152
  33. 2.548
  34. 0.594
  35. 10.53
  36. 0.064
  37. 21.39
  38. 0.748
  39. 1.53
  40. 1.001

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