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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 627 · 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. 1.0.38 × 0.4 =
  2. 2.4.9 × 0.21 =
  3. 3.7.9 × 2.2 =
  4. 4.6.4 × 0.17 =
  5. 5.0.31 × 1.6 =
  6. 6.0.25 × 1.3 =
  7. 7.0.33 × 3.7 =
  8. 8.9.2 × 2.9 =
  9. 9.0.14 × 1.1 =
  10. 10.2.6 × 0.34 =
  11. 11.0.25 × 1.1 =
  12. 12.4.2 × 0.23 =
  13. 13.5.9 × 0.31 =
  14. 14.7.1 × 0.21 =
  15. 15.2.9 × 0.15 =
  16. 16.6.3 × 0.8 =
  17. 17.0.07 × 0.3 =
  18. 18.0.17 × 2.1 =
  19. 19.7.1 × 1.3 =
  20. 20.4.2 × 0.9 =
  21. 21.8.3 × 2.6 =
  22. 22.0.41 × 2.2 =
  23. 23.8.9 × 0.11 =
  24. 24.6.4 × 0.31 =
  25. 25.7.8 × 0.07 =
  26. 26.2.4 × 0.34 =
  27. 27.7.9 × 0.28 =
  28. 28.6.1 × 0.15 =
  29. 29.4.3 × 3.7 =
  30. 30.0.76 × 1.9 =
  31. 31.4.2 × 0.02 =
  32. 32.0.18 × 1.6 =
  33. 33.0.66 × 1.1 =
  34. 34.0.36 × 3.4 =
  35. 35.0.74 × 3.3 =
  36. 36.6.3 × 2.3 =
  37. 37.0.73 × 2.9 =
  38. 38.0.86 × 0.4 =
  39. 39.1.5 × 0.2 =
  40. 40.0.15 × 1.9 =

Answer key

  1. 0.152
  2. 1.029
  3. 17.38
  4. 1.088
  5. 0.496
  6. 0.325
  7. 1.221
  8. 26.68
  9. 0.154
  10. 0.884
  11. 0.275
  12. 0.966
  13. 1.829
  14. 1.491
  15. 0.435
  16. 5.04
  17. 0.021
  18. 0.357
  19. 9.23
  20. 3.78
  21. 21.58
  22. 0.902
  23. 0.979
  24. 1.984
  25. 0.546
  26. 0.816
  27. 2.212
  28. 0.915
  29. 15.91
  30. 1.444
  31. 0.084
  32. 0.288
  33. 0.726
  34. 1.224
  35. 2.442
  36. 14.49
  37. 2.117
  38. 0.344
  39. 0.3
  40. 0.285

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