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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 709 · 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. 1.0.07 × 2.6 =
  2. 2.0.98 × 0.4 =
  3. 3.0.89 × 1.6 =
  4. 4.8.3 × 0.12 =
  5. 5.0.49 × 1.6 =
  6. 6.0.7 × 0.17 =
  7. 7.0.4 × 0.2 =
  8. 8.0.62 × 1.1 =
  9. 9.1.4 × 0.17 =
  10. 10.0.53 × 1.5 =
  11. 11.6.8 × 3.6 =
  12. 12.4.6 × 1.7 =
  13. 13.9.5 × 1.4 =
  14. 14.2.1 × 0.32 =
  15. 15.0.48 × 3.7 =
  16. 16.0.87 × 1.7 =
  17. 17.8.6 × 1.2 =
  18. 18.0.26 × 2.8 =
  19. 19.0.56 × 3.4 =
  20. 20.0.17 × 3.6 =
  21. 21.0.45 × 3.2 =
  22. 22.7.3 × 0.8 =
  23. 23.0.51 × 1.8 =
  24. 24.3.7 × 0.8 =
  25. 25.0.12 × 0.2 =
  26. 26.9.4 × 1.9 =
  27. 27.9.1 × 0.06 =
  28. 28.0.28 × 0.4 =
  29. 29.0.25 × 3.6 =
  30. 30.1.3 × 1.1 =
  31. 31.5.2 × 1.9 =
  32. 32.8.6 × 0.32 =
  33. 33.0.16 × 0.4 =
  34. 34.9.2 × 1.8 =
  35. 35.7.2 × 0.21 =
  36. 36.0.08 × 1.1 =
  37. 37.7.8 × 0.36 =
  38. 38.6.1 × 2.6 =
  39. 39.9.7 × 0.02 =
  40. 40.0.61 × 0.8 =

Answer key

  1. 0.182
  2. 0.392
  3. 1.424
  4. 0.996
  5. 0.784
  6. 0.119
  7. 0.08
  8. 0.682
  9. 0.238
  10. 0.795
  11. 24.48
  12. 7.82
  13. 13.3
  14. 0.672
  15. 1.776
  16. 1.479
  17. 10.32
  18. 0.728
  19. 1.904
  20. 0.612
  21. 1.44
  22. 5.84
  23. 0.918
  24. 2.96
  25. 0.024
  26. 17.86
  27. 0.546
  28. 0.112
  29. 0.9
  30. 1.43
  31. 9.88
  32. 2.752
  33. 0.064
  34. 16.56
  35. 1.512
  36. 0.088
  37. 2.808
  38. 15.86
  39. 0.194
  40. 0.488

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