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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 285 · 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. 1.2.1 × 0.32 =
  2. 2.6.2 × 1.4 =
  3. 3.0.4 × 0.13 =
  4. 4.0.56 × 3.2 =
  5. 5.6.6 × 0.38 =
  6. 6.6.5 × 2.1 =
  7. 7.0.63 × 3.8 =
  8. 8.6.1 × 2.5 =
  9. 9.0.54 × 1.1 =
  10. 10.0.09 × 3.4 =
  11. 11.7.4 × 0.22 =
  12. 12.9.5 × 0.8 =
  13. 13.0.64 × 2.1 =
  14. 14.8.3 × 0.26 =
  15. 15.0.72 × 2.4 =
  16. 16.0.49 × 2.1 =
  17. 17.8.3 × 0.31 =
  18. 18.9.5 × 1.1 =
  19. 19.4.7 × 1.5 =
  20. 20.7.7 × 0.26 =
  21. 21.0.6 × 0.39 =
  22. 22.0.27 × 1.4 =
  23. 23.0.93 × 2.7 =
  24. 24.7.4 × 1.9 =
  25. 25.0.79 × 1.2 =
  26. 26.5.9 × 0.36 =
  27. 27.0.91 × 1.5 =
  28. 28.0.02 × 2.8 =
  29. 29.0.07 × 3.1 =
  30. 30.5.4 × 0.2 =
  31. 31.0.78 × 2.6 =
  32. 32.7.5 × 0.6 =
  33. 33.0.36 × 0.3 =
  34. 34.5.5 × 0.6 =
  35. 35.0.41 × 3.1 =
  36. 36.8.4 × 0.28 =
  37. 37.2.7 × 0.31 =
  38. 38.0.12 × 3.6 =
  39. 39.0.31 × 2.2 =
  40. 40.0.43 × 3.1 =

Answer key

  1. 0.672
  2. 8.68
  3. 0.052
  4. 1.792
  5. 2.508
  6. 13.65
  7. 2.394
  8. 15.25
  9. 0.594
  10. 0.306
  11. 1.628
  12. 7.6
  13. 1.344
  14. 2.158
  15. 1.728
  16. 1.029
  17. 2.573
  18. 10.45
  19. 7.05
  20. 2.002
  21. 0.234
  22. 0.378
  23. 2.511
  24. 14.06
  25. 0.948
  26. 2.124
  27. 1.365
  28. 0.056
  29. 0.217
  30. 1.08
  31. 2.028
  32. 4.5
  33. 0.108
  34. 3.3
  35. 1.271
  36. 2.352
  37. 0.837
  38. 0.432
  39. 0.682
  40. 1.333

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