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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 162 · 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. 1.6.9 × 1.8 =
  2. 2.0.11 × 3.4 =
  3. 3.0.31 × 3.8 =
  4. 4.9.7 × 0.32 =
  5. 5.3.8 × 2.6 =
  6. 6.0.71 × 0.2 =
  7. 7.8.8 × 1.8 =
  8. 8.0.12 × 1.7 =
  9. 9.0.8 × 0.14 =
  10. 10.0.04 × 3.7 =
  11. 11.9.8 × 1.7 =
  12. 12.5.1 × 1.8 =
  13. 13.7.8 × 0.18 =
  14. 14.0.03 × 3.8 =
  15. 15.0.41 × 0.6 =
  16. 16.0.18 × 1.4 =
  17. 17.0.39 × 3.5 =
  18. 18.0.33 × 2.1 =
  19. 19.0.8 × 0.36 =
  20. 20.0.31 × 2.1 =
  21. 21.0.52 × 0.9 =
  22. 22.0.16 × 0.2 =
  23. 23.0.99 × 1.2 =
  24. 24.0.26 × 3.5 =
  25. 25.6.8 × 2.8 =
  26. 26.0.94 × 1.5 =
  27. 27.2.1 × 0.22 =
  28. 28.2.1 × 1.3 =
  29. 29.2.3 × 0.33 =
  30. 30.0.69 × 1.8 =
  31. 31.0.06 × 2.9 =
  32. 32.8.6 × 0.05 =
  33. 33.0.89 × 0.7 =
  34. 34.1.7 × 1.8 =
  35. 35.0.9 × 0.12 =
  36. 36.0.04 × 3.2 =
  37. 37.8.2 × 0.11 =
  38. 38.0.41 × 3.3 =
  39. 39.0.25 × 2.2 =
  40. 40.0.33 × 2.9 =

Answer key

  1. 12.42
  2. 0.374
  3. 1.178
  4. 3.104
  5. 9.88
  6. 0.142
  7. 15.84
  8. 0.204
  9. 0.112
  10. 0.148
  11. 16.66
  12. 9.18
  13. 1.404
  14. 0.114
  15. 0.246
  16. 0.252
  17. 1.365
  18. 0.693
  19. 0.288
  20. 0.651
  21. 0.468
  22. 0.032
  23. 1.188
  24. 0.91
  25. 19.04
  26. 1.41
  27. 0.462
  28. 2.73
  29. 0.759
  30. 1.242
  31. 0.174
  32. 0.43
  33. 0.623
  34. 3.06
  35. 0.108
  36. 0.128
  37. 0.902
  38. 1.353
  39. 0.55
  40. 0.957

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