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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 274 · 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. 1.0.73 × 0.4 =
  2. 2.8.8 × 0.36 =
  3. 3.0.71 × 3.1 =
  4. 4.0.06 × 3.3 =
  5. 5.0.74 × 3.5 =
  6. 6.1.9 × 0.21 =
  7. 7.2.1 × 2.8 =
  8. 8.0.13 × 2.5 =
  9. 9.0.14 × 0.7 =
  10. 10.0.21 × 0.8 =
  11. 11.0.15 × 0.8 =
  12. 12.0.24 × 0.3 =
  13. 13.6.6 × 0.21 =
  14. 14.0.6 × 0.25 =
  15. 15.9.3 × 1.1 =
  16. 16.0.04 × 3.6 =
  17. 17.2.8 × 0.17 =
  18. 18.2.1 × 1.6 =
  19. 19.0.55 × 2.8 =
  20. 20.0.57 × 3.4 =
  21. 21.0.78 × 2.7 =
  22. 22.9.5 × 0.04 =
  23. 23.3.4 × 0.31 =
  24. 24.7.6 × 2.8 =
  25. 25.1.6 × 0.12 =
  26. 26.0.9 × 1.6 =
  27. 27.2.6 × 1.2 =
  28. 28.5.3 × 0.18 =
  29. 29.0.32 × 3.6 =
  30. 30.0.79 × 0.4 =
  31. 31.2.5 × 3.2 =
  32. 32.1.6 × 0.13 =
  33. 33.0.39 × 1.1 =
  34. 34.6.5 × 1.7 =
  35. 35.8.1 × 0.9 =
  36. 36.0.4 × 0.17 =
  37. 37.1.3 × 0.3 =
  38. 38.0.81 × 1.4 =
  39. 39.0.07 × 3.7 =
  40. 40.5.4 × 1.6 =

Answer key

  1. 0.292
  2. 3.168
  3. 2.201
  4. 0.198
  5. 2.59
  6. 0.399
  7. 5.88
  8. 0.325
  9. 0.098
  10. 0.168
  11. 0.12
  12. 0.072
  13. 1.386
  14. 0.15
  15. 10.23
  16. 0.144
  17. 0.476
  18. 3.36
  19. 1.54
  20. 1.938
  21. 2.106
  22. 0.38
  23. 1.054
  24. 21.28
  25. 0.192
  26. 1.44
  27. 3.12
  28. 0.954
  29. 1.152
  30. 0.316
  31. 8
  32. 0.208
  33. 0.429
  34. 11.05
  35. 7.29
  36. 0.068
  37. 0.39
  38. 1.134
  39. 0.259
  40. 8.64

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