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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 286 · 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. 1.7.6 × 0.19 =
  2. 2.0.45 × 3.7 =
  3. 3.6.9 × 2.2 =
  4. 4.0.43 × 2.8 =
  5. 5.5.7 × 0.23 =
  6. 6.0.79 × 1.9 =
  7. 7.4.5 × 1.3 =
  8. 8.0.24 × 1.5 =
  9. 9.0.5 × 1.5 =
  10. 10.5.9 × 3.1 =
  11. 11.4.2 × 1.9 =
  12. 12.0.99 × 1.4 =
  13. 13.6.8 × 2.1 =
  14. 14.6.7 × 0.32 =
  15. 15.5.3 × 0.3 =
  16. 16.0.78 × 1.7 =
  17. 17.1.5 × 0.12 =
  18. 18.0.42 × 2.1 =
  19. 19.0.45 × 3.7 =
  20. 20.0.87 × 1.6 =
  21. 21.2.3 × 0.35 =
  22. 22.2.1 × 0.9 =
  23. 23.0.03 × 0.2 =
  24. 24.7.5 × 0.4 =
  25. 25.0.7 × 0.04 =
  26. 26.0.24 × 0.2 =
  27. 27.8.6 × 0.08 =
  28. 28.0.71 × 3.3 =
  29. 29.7.1 × 0.35 =
  30. 30.0.04 × 0.8 =
  31. 31.0.72 × 0.7 =
  32. 32.0.32 × 3.1 =
  33. 33.0.44 × 1.7 =
  34. 34.0.92 × 3.7 =
  35. 35.9.3 × 0.13 =
  36. 36.0.27 × 3.5 =
  37. 37.1.9 × 0.23 =
  38. 38.0.06 × 2.7 =
  39. 39.0.24 × 0.8 =
  40. 40.8.6 × 0.29 =

Answer key

  1. 1.444
  2. 1.665
  3. 15.18
  4. 1.204
  5. 1.311
  6. 1.501
  7. 5.85
  8. 0.36
  9. 0.75
  10. 18.29
  11. 7.98
  12. 1.386
  13. 14.28
  14. 2.144
  15. 1.59
  16. 1.326
  17. 0.18
  18. 0.882
  19. 1.665
  20. 1.392
  21. 0.805
  22. 1.89
  23. 0.006
  24. 3
  25. 0.028
  26. 0.048
  27. 0.688
  28. 2.343
  29. 2.485
  30. 0.032
  31. 0.504
  32. 0.992
  33. 0.748
  34. 3.404
  35. 1.209
  36. 0.945
  37. 0.437
  38. 0.162
  39. 0.192
  40. 2.494

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