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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 548 · 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. 1.8.6 × 1.9 =
  2. 2.6.7 × 1.4 =
  3. 3.2.1 × 0.11 =
  4. 4.8.7 × 1.9 =
  5. 5.0.95 × 1.7 =
  6. 6.0.33 × 2.2 =
  7. 7.1.6 × 0.6 =
  8. 8.3.9 × 0.15 =
  9. 9.0.51 × 1.8 =
  10. 10.0.2 × 3.2 =
  11. 11.0.12 × 3.2 =
  12. 12.0.3 × 0.11 =
  13. 13.3.6 × 0.33 =
  14. 14.6.7 × 1.1 =
  15. 15.9.5 × 0.3 =
  16. 16.0.94 × 2.6 =
  17. 17.5.4 × 0.24 =
  18. 18.4.9 × 0.07 =
  19. 19.0.33 × 2.4 =
  20. 20.2.9 × 0.7 =
  21. 21.7.3 × 0.35 =
  22. 22.0.66 × 3.2 =
  23. 23.0.84 × 3.7 =
  24. 24.0.74 × 0.3 =
  25. 25.9.7 × 1.2 =
  26. 26.5.4 × 0.31 =
  27. 27.3.3 × 0.26 =
  28. 28.0.37 × 1.2 =
  29. 29.0.35 × 3.9 =
  30. 30.3.1 × 1.7 =
  31. 31.2.2 × 0.39 =
  32. 32.6.6 × 1.5 =
  33. 33.4.8 × 1.7 =
  34. 34.3.4 × 0.15 =
  35. 35.4.5 × 3.1 =
  36. 36.0.52 × 2.1 =
  37. 37.0.82 × 3.5 =
  38. 38.0.56 × 1.2 =
  39. 39.0.05 × 0.3 =
  40. 40.7.1 × 0.9 =

Answer key

  1. 16.34
  2. 9.38
  3. 0.231
  4. 16.53
  5. 1.615
  6. 0.726
  7. 0.96
  8. 0.585
  9. 0.918
  10. 0.64
  11. 0.384
  12. 0.033
  13. 1.188
  14. 7.37
  15. 2.85
  16. 2.444
  17. 1.296
  18. 0.343
  19. 0.792
  20. 2.03
  21. 2.555
  22. 2.112
  23. 3.108
  24. 0.222
  25. 11.64
  26. 1.674
  27. 0.858
  28. 0.444
  29. 1.365
  30. 5.27
  31. 0.858
  32. 9.9
  33. 8.16
  34. 0.51
  35. 13.95
  36. 1.092
  37. 2.87
  38. 0.672
  39. 0.015
  40. 6.39

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