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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 448 · 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. 1.4.5 × 1.9 =
  2. 2.1.1 × 1.7 =
  3. 3.6.1 × 0.08 =
  4. 4.3.1 × 0.08 =
  5. 5.9.1 × 0.37 =
  6. 6.0.83 × 3.8 =
  7. 7.0.56 × 1.2 =
  8. 8.0.46 × 1.1 =
  9. 9.8.6 × 3.2 =
  10. 10.0.61 × 2.7 =
  11. 11.0.69 × 2.4 =
  12. 12.6.8 × 0.19 =
  13. 13.7.8 × 0.13 =
  14. 14.7.1 × 2.9 =
  15. 15.0.44 × 2.4 =
  16. 16.0.3 × 0.25 =
  17. 17.0.07 × 0.4 =
  18. 18.3.4 × 3.8 =
  19. 19.0.86 × 1.1 =
  20. 20.9.7 × 0.04 =
  21. 21.3.3 × 0.22 =
  22. 22.3.8 × 0.11 =
  23. 23.6.1 × 0.08 =
  24. 24.0.07 × 3.8 =
  25. 25.0.81 × 0.6 =
  26. 26.2.5 × 3.2 =
  27. 27.9.1 × 0.08 =
  28. 28.2.5 × 3.5 =
  29. 29.5.1 × 0.04 =
  30. 30.5.3 × 0.31 =
  31. 31.0.86 × 2.1 =
  32. 32.0.91 × 3.1 =
  33. 33.0.31 × 1.9 =
  34. 34.0.89 × 3.1 =
  35. 35.0.07 × 1.6 =
  36. 36.3.9 × 0.09 =
  37. 37.0.13 × 2.7 =
  38. 38.0.11 × 2.8 =
  39. 39.0.67 × 2.2 =
  40. 40.4.5 × 2.2 =

Answer key

  1. 8.55
  2. 1.87
  3. 0.488
  4. 0.248
  5. 3.367
  6. 3.154
  7. 0.672
  8. 0.506
  9. 27.52
  10. 1.647
  11. 1.656
  12. 1.292
  13. 1.014
  14. 20.59
  15. 1.056
  16. 0.075
  17. 0.028
  18. 12.92
  19. 0.946
  20. 0.388
  21. 0.726
  22. 0.418
  23. 0.488
  24. 0.266
  25. 0.486
  26. 8
  27. 0.728
  28. 8.75
  29. 0.204
  30. 1.643
  31. 1.806
  32. 2.821
  33. 0.589
  34. 2.759
  35. 0.112
  36. 0.351
  37. 0.351
  38. 0.308
  39. 1.474
  40. 9.9

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