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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 747 · 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. 1.0.88 × 3.3 =
  2. 2.0.98 × 2.8 =
  3. 3.0.3 × 0.6 =
  4. 4.8.4 × 0.37 =
  5. 5.0.97 × 2.2 =
  6. 6.0.93 × 1.1 =
  7. 7.0.41 × 0.3 =
  8. 8.2.2 × 0.06 =
  9. 9.9.3 × 3.2 =
  10. 10.5.1 × 0.08 =
  11. 11.2.3 × 0.6 =
  12. 12.1.6 × 0.39 =
  13. 13.0.67 × 1.4 =
  14. 14.0.67 × 0.7 =
  15. 15.0.87 × 3.2 =
  16. 16.0.78 × 0.4 =
  17. 17.0.21 × 3.1 =
  18. 18.1.3 × 1.1 =
  19. 19.0.25 × 0.9 =
  20. 20.0.74 × 3.4 =
  21. 21.5.2 × 0.7 =
  22. 22.0.51 × 1.2 =
  23. 23.0.09 × 3.1 =
  24. 24.0.08 × 0.3 =
  25. 25.8.9 × 0.33 =
  26. 26.3.2 × 0.11 =
  27. 27.1.7 × 1.1 =
  28. 28.9.6 × 0.02 =
  29. 29.1.3 × 0.27 =
  30. 30.1.2 × 0.8 =
  31. 31.0.93 × 2.8 =
  32. 32.7.4 × 3.1 =
  33. 33.7.1 × 0.6 =
  34. 34.0.51 × 2.5 =
  35. 35.0.3 × 0.25 =
  36. 36.0.7 × 0.23 =
  37. 37.0.3 × 2.8 =
  38. 38.7.1 × 0.18 =
  39. 39.0.44 × 2.6 =
  40. 40.7.9 × 1.3 =

Answer key

  1. 2.904
  2. 2.744
  3. 0.18
  4. 3.108
  5. 2.134
  6. 1.023
  7. 0.123
  8. 0.132
  9. 29.76
  10. 0.408
  11. 1.38
  12. 0.624
  13. 0.938
  14. 0.469
  15. 2.784
  16. 0.312
  17. 0.651
  18. 1.43
  19. 0.225
  20. 2.516
  21. 3.64
  22. 0.612
  23. 0.279
  24. 0.024
  25. 2.937
  26. 0.352
  27. 1.87
  28. 0.192
  29. 0.351
  30. 0.96
  31. 2.604
  32. 22.94
  33. 4.26
  34. 1.275
  35. 0.075
  36. 0.161
  37. 0.84
  38. 1.278
  39. 1.144
  40. 10.27

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