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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 320 · 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. 1.7.8 × 1.9 =
  2. 2.9.4 × 1.6 =
  3. 3.0.41 × 1.3 =
  4. 4.5.6 × 0.21 =
  5. 5.0.9 × 2.1 =
  6. 6.6.1 × 0.9 =
  7. 7.2.9 × 0.19 =
  8. 8.9.6 × 0.21 =
  9. 9.0.83 × 0.7 =
  10. 10.0.76 × 3.4 =
  11. 11.0.48 × 0.4 =
  12. 12.0.41 × 3.5 =
  13. 13.1.5 × 2.2 =
  14. 14.0.98 × 0.5 =
  15. 15.0.7 × 0.23 =
  16. 16.0.26 × 2.6 =
  17. 17.1.7 × 3.6 =
  18. 18.7.9 × 0.6 =
  19. 19.6.8 × 0.06 =
  20. 20.0.3 × 2.3 =
  21. 21.4.6 × 0.11 =
  22. 22.6.1 × 1.5 =
  23. 23.0.03 × 2.6 =
  24. 24.0.72 × 3.1 =
  25. 25.0.54 × 2.1 =
  26. 26.0.82 × 0.9 =
  27. 27.0.19 × 2.3 =
  28. 28.4.1 × 0.38 =
  29. 29.4.6 × 2.4 =
  30. 30.8.9 × 0.34 =
  31. 31.0.21 × 2.8 =
  32. 32.0.32 × 2.6 =
  33. 33.7.5 × 0.11 =
  34. 34.0.9 × 0.6 =
  35. 35.7.1 × 2.2 =
  36. 36.0.41 × 1.7 =
  37. 37.7.9 × 2.5 =
  38. 38.4.1 × 0.36 =
  39. 39.9.1 × 0.9 =
  40. 40.0.69 × 0.3 =

Answer key

  1. 14.82
  2. 15.04
  3. 0.533
  4. 1.176
  5. 1.89
  6. 5.49
  7. 0.551
  8. 2.016
  9. 0.581
  10. 2.584
  11. 0.192
  12. 1.435
  13. 3.3
  14. 0.49
  15. 0.161
  16. 0.676
  17. 6.12
  18. 4.74
  19. 0.408
  20. 0.69
  21. 0.506
  22. 9.15
  23. 0.078
  24. 2.232
  25. 1.134
  26. 0.738
  27. 0.437
  28. 1.558
  29. 11.04
  30. 3.026
  31. 0.588
  32. 0.832
  33. 0.825
  34. 0.54
  35. 15.62
  36. 0.697
  37. 19.75
  38. 1.476
  39. 8.19
  40. 0.207

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