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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 319 · 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. 1.3.5 × 2.6 =
  2. 2.0.24 × 0.8 =
  3. 3.0.39 × 0.4 =
  4. 4.9.1 × 0.9 =
  5. 5.5.4 × 0.17 =
  6. 6.2.5 × 2.9 =
  7. 7.0.41 × 1.1 =
  8. 8.9.1 × 0.38 =
  9. 9.4.3 × 3.5 =
  10. 10.5.6 × 1.7 =
  11. 11.3.3 × 0.3 =
  12. 12.6.3 × 0.27 =
  13. 13.2.1 × 3.9 =
  14. 14.0.34 × 2.8 =
  15. 15.0.6 × 2.1 =
  16. 16.0.17 × 1.4 =
  17. 17.7.1 × 0.21 =
  18. 18.0.61 × 1.8 =
  19. 19.0.5 × 3.6 =
  20. 20.6.9 × 1.5 =
  21. 21.7.1 × 0.15 =
  22. 22.7.8 × 1.1 =
  23. 23.0.21 × 0.5 =
  24. 24.0.84 × 1.6 =
  25. 25.0.21 × 3.7 =
  26. 26.0.21 × 1.1 =
  27. 27.1.3 × 0.11 =
  28. 28.0.32 × 1.2 =
  29. 29.2.1 × 2.7 =
  30. 30.7.1 × 0.02 =
  31. 31.0.15 × 1.9 =
  32. 32.0.78 × 2.9 =
  33. 33.0.58 × 3.4 =
  34. 34.9.6 × 3.9 =
  35. 35.6.8 × 3.7 =
  36. 36.2.9 × 2.8 =
  37. 37.7.2 × 0.5 =
  38. 38.0.79 × 3.9 =
  39. 39.1.4 × 0.13 =
  40. 40.3.9 × 3.5 =

Answer key

  1. 9.1
  2. 0.192
  3. 0.156
  4. 8.19
  5. 0.918
  6. 7.25
  7. 0.451
  8. 3.458
  9. 15.05
  10. 9.52
  11. 0.99
  12. 1.701
  13. 8.19
  14. 0.952
  15. 1.26
  16. 0.238
  17. 1.491
  18. 1.098
  19. 1.8
  20. 10.35
  21. 1.065
  22. 8.58
  23. 0.105
  24. 1.344
  25. 0.777
  26. 0.231
  27. 0.143
  28. 0.384
  29. 5.67
  30. 0.142
  31. 0.285
  32. 2.262
  33. 1.972
  34. 37.44
  35. 25.16
  36. 8.12
  37. 3.6
  38. 3.081
  39. 0.182
  40. 13.65

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