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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 173 · 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. 1.0.54 × 0.3 =
  2. 2.2.8 × 2.5 =
  3. 3.0.98 × 3.1 =
  4. 4.9.8 × 1.4 =
  5. 5.0.66 × 1.3 =
  6. 6.0.96 × 3.9 =
  7. 7.3.8 × 1.1 =
  8. 8.1.1 × 0.5 =
  9. 9.0.35 × 3.5 =
  10. 10.2.1 × 2.3 =
  11. 11.0.76 × 1.1 =
  12. 12.4.6 × 0.02 =
  13. 13.0.48 × 1.4 =
  14. 14.2.5 × 0.14 =
  15. 15.0.3 × 0.4 =
  16. 16.0.29 × 1.6 =
  17. 17.6.8 × 0.21 =
  18. 18.0.18 × 0.6 =
  19. 19.1.5 × 0.26 =
  20. 20.9.8 × 3.7 =
  21. 21.0.61 × 3.6 =
  22. 22.6.3 × 0.02 =
  23. 23.0.79 × 1.1 =
  24. 24.0.78 × 3.5 =
  25. 25.6.1 × 2.5 =
  26. 26.9.4 × 1.5 =
  27. 27.0.6 × 1.9 =
  28. 28.7.7 × 1.1 =
  29. 29.2.6 × 2.8 =
  30. 30.4.7 × 1.6 =
  31. 31.8.6 × 0.21 =
  32. 32.1.5 × 2.2 =
  33. 33.1.8 × 0.04 =
  34. 34.0.05 × 1.4 =
  35. 35.5.9 × 0.9 =
  36. 36.6.3 × 3.7 =
  37. 37.6.2 × 1.1 =
  38. 38.2.6 × 0.8 =
  39. 39.0.56 × 2.4 =
  40. 40.0.62 × 1.7 =

Answer key

  1. 0.162
  2. 7
  3. 3.038
  4. 13.72
  5. 0.858
  6. 3.744
  7. 4.18
  8. 0.55
  9. 1.225
  10. 4.83
  11. 0.836
  12. 0.092
  13. 0.672
  14. 0.35
  15. 0.12
  16. 0.464
  17. 1.428
  18. 0.108
  19. 0.39
  20. 36.26
  21. 2.196
  22. 0.126
  23. 0.869
  24. 2.73
  25. 15.25
  26. 14.1
  27. 1.14
  28. 8.47
  29. 7.28
  30. 7.52
  31. 1.806
  32. 3.3
  33. 0.072
  34. 0.07
  35. 5.31
  36. 23.31
  37. 6.82
  38. 2.08
  39. 1.344
  40. 1.054

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