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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 205 · 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. 1.0.09 × 3.6 =
  2. 2.0.76 × 1.9 =
  3. 3.4.2 × 1.2 =
  4. 4.0.18 × 3.8 =
  5. 5.0.8 × 1.1 =
  6. 6.0.49 × 1.6 =
  7. 7.6.2 × 2.6 =
  8. 8.5.1 × 0.31 =
  9. 9.0.5 × 0.07 =
  10. 10.0.25 × 1.9 =
  11. 11.0.16 × 0.3 =
  12. 12.0.84 × 2.9 =
  13. 13.0.75 × 0.3 =
  14. 14.8.1 × 3.7 =
  15. 15.0.06 × 0.4 =
  16. 16.8.1 × 0.5 =
  17. 17.3.6 × 0.06 =
  18. 18.3.1 × 3.6 =
  19. 19.0.06 × 2.2 =
  20. 20.0.14 × 2.4 =
  21. 21.0.06 × 1.1 =
  22. 22.5.6 × 0.22 =
  23. 23.0.46 × 1.3 =
  24. 24.0.83 × 1.1 =
  25. 25.0.51 × 3.8 =
  26. 26.7.1 × 1.5 =
  27. 27.7.1 × 0.12 =
  28. 28.0.07 × 2.3 =
  29. 29.1.5 × 0.11 =
  30. 30.6.6 × 2.1 =
  31. 31.7.1 × 2.3 =
  32. 32.0.75 × 2.6 =
  33. 33.7.5 × 0.37 =
  34. 34.0.87 × 0.4 =
  35. 35.0.24 × 3.1 =
  36. 36.0.8 × 0.32 =
  37. 37.2.2 × 0.3 =
  38. 38.0.79 × 3.1 =
  39. 39.0.31 × 2.5 =
  40. 40.0.93 × 2.7 =

Answer key

  1. 0.324
  2. 1.444
  3. 5.04
  4. 0.684
  5. 0.88
  6. 0.784
  7. 16.12
  8. 1.581
  9. 0.035
  10. 0.475
  11. 0.048
  12. 2.436
  13. 0.225
  14. 29.97
  15. 0.024
  16. 4.05
  17. 0.216
  18. 11.16
  19. 0.132
  20. 0.336
  21. 0.066
  22. 1.232
  23. 0.598
  24. 0.913
  25. 1.938
  26. 10.65
  27. 0.852
  28. 0.161
  29. 0.165
  30. 13.86
  31. 16.33
  32. 1.95
  33. 2.775
  34. 0.348
  35. 0.744
  36. 0.256
  37. 0.66
  38. 2.449
  39. 0.775
  40. 2.511

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