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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 387 · 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. 1.1.9 × 3.3 =
  2. 2.0.23 × 2.8 =
  3. 3.2.5 × 0.21 =
  4. 4.0.24 × 3.3 =
  5. 5.7.5 × 1.7 =
  6. 6.7.3 × 1.2 =
  7. 7.0.65 × 3.1 =
  8. 8.5.2 × 0.04 =
  9. 9.8.1 × 0.12 =
  10. 10.3.5 × 0.26 =
  11. 11.9.3 × 0.39 =
  12. 12.0.5 × 2.6 =
  13. 13.0.64 × 1.2 =
  14. 14.0.72 × 3.1 =
  15. 15.2.8 × 0.29 =
  16. 16.2.2 × 1.2 =
  17. 17.0.97 × 2.5 =
  18. 18.1.4 × 2.7 =
  19. 19.0.55 × 3.5 =
  20. 20.6.1 × 1.6 =
  21. 21.0.83 × 1.5 =
  22. 22.0.15 × 1.3 =
  23. 23.0.37 × 0.6 =
  24. 24.0.77 × 3.9 =
  25. 25.4.1 × 0.39 =
  26. 26.0.02 × 0.8 =
  27. 27.0.76 × 0.6 =
  28. 28.0.18 × 3.2 =
  29. 29.0.04 × 3.6 =
  30. 30.0.63 × 0.7 =
  31. 31.8.8 × 2.4 =
  32. 32.0.59 × 3.2 =
  33. 33.3.4 × 3.2 =
  34. 34.2.1 × 2.1 =
  35. 35.0.33 × 1.3 =
  36. 36.4.3 × 1.3 =
  37. 37.0.2 × 0.15 =
  38. 38.0.69 × 1.2 =
  39. 39.0.41 × 3.2 =
  40. 40.9.6 × 0.16 =

Answer key

  1. 6.27
  2. 0.644
  3. 0.525
  4. 0.792
  5. 12.75
  6. 8.76
  7. 2.015
  8. 0.208
  9. 0.972
  10. 0.91
  11. 3.627
  12. 1.3
  13. 0.768
  14. 2.232
  15. 0.812
  16. 2.64
  17. 2.425
  18. 3.78
  19. 1.925
  20. 9.76
  21. 1.245
  22. 0.195
  23. 0.222
  24. 3.003
  25. 1.599
  26. 0.016
  27. 0.456
  28. 0.576
  29. 0.144
  30. 0.441
  31. 21.12
  32. 1.888
  33. 10.88
  34. 4.41
  35. 0.429
  36. 5.59
  37. 0.03
  38. 0.828
  39. 1.312
  40. 1.536

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