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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 454 · 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. 1.4.7 × 3.7 =
  2. 2.0.41 × 2.9 =
  3. 3.5.7 × 3.3 =
  4. 4.5.5 × 3.2 =
  5. 5.6.6 × 2.3 =
  6. 6.0.5 × 0.11 =
  7. 7.4.8 × 0.27 =
  8. 8.2.3 × 0.07 =
  9. 9.1.3 × 0.34 =
  10. 10.0.53 × 3.1 =
  11. 11.0.76 × 3.2 =
  12. 12.0.23 × 2.6 =
  13. 13.0.89 × 2.3 =
  14. 14.0.71 × 2.6 =
  15. 15.6.7 × 0.37 =
  16. 16.6.5 × 0.38 =
  17. 17.0.69 × 0.8 =
  18. 18.0.31 × 2.1 =
  19. 19.0.41 × 2.9 =
  20. 20.0.21 × 3.1 =
  21. 21.0.16 × 3.2 =
  22. 22.0.32 × 1.3 =
  23. 23.0.42 × 2.1 =
  24. 24.0.31 × 0.7 =
  25. 25.0.68 × 3.7 =
  26. 26.0.89 × 3.6 =
  27. 27.9.8 × 0.08 =
  28. 28.0.55 × 2.8 =
  29. 29.7.1 × 1.5 =
  30. 30.3.8 × 0.18 =
  31. 31.0.33 × 1.5 =
  32. 32.0.59 × 0.3 =
  33. 33.4.6 × 0.39 =
  34. 34.0.9 × 1.1 =
  35. 35.0.51 × 3.7 =
  36. 36.3.2 × 0.36 =
  37. 37.0.23 × 0.7 =
  38. 38.5.4 × 0.9 =
  39. 39.0.32 × 1.8 =
  40. 40.0.05 × 0.4 =

Answer key

  1. 17.39
  2. 1.189
  3. 18.81
  4. 17.6
  5. 15.18
  6. 0.055
  7. 1.296
  8. 0.161
  9. 0.442
  10. 1.643
  11. 2.432
  12. 0.598
  13. 2.047
  14. 1.846
  15. 2.479
  16. 2.47
  17. 0.552
  18. 0.651
  19. 1.189
  20. 0.651
  21. 0.512
  22. 0.416
  23. 0.882
  24. 0.217
  25. 2.516
  26. 3.204
  27. 0.784
  28. 1.54
  29. 10.65
  30. 0.684
  31. 0.495
  32. 0.177
  33. 1.794
  34. 0.99
  35. 1.887
  36. 1.152
  37. 0.161
  38. 4.86
  39. 0.576
  40. 0.02

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