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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 401 · 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. 1.8.8 × 0.38 =
  2. 2.0.95 × 3.1 =
  3. 3.6.8 × 0.2 =
  4. 4.0.4 × 3.5 =
  5. 5.9.2 × 1.2 =
  6. 6.0.84 × 1.2 =
  7. 7.6.1 × 0.04 =
  8. 8.0.07 × 2.6 =
  9. 9.0.94 × 1.9 =
  10. 10.0.21 × 0.3 =
  11. 11.0.58 × 1.7 =
  12. 12.0.11 × 1.8 =
  13. 13.4.4 × 0.05 =
  14. 14.0.78 × 0.9 =
  15. 15.0.98 × 1.1 =
  16. 16.0.03 × 0.7 =
  17. 17.2.2 × 3.5 =
  18. 18.0.02 × 3.8 =
  19. 19.0.47 × 1.6 =
  20. 20.0.7 × 2.4 =
  21. 21.0.71 × 0.6 =
  22. 22.7.3 × 0.05 =
  23. 23.3.6 × 0.35 =
  24. 24.0.66 × 1.5 =
  25. 25.2.5 × 0.14 =
  26. 26.0.53 × 3.4 =
  27. 27.8.9 × 0.04 =
  28. 28.9.6 × 0.3 =
  29. 29.5.1 × 1.2 =
  30. 30.0.88 × 3.4 =
  31. 31.6.2 × 0.22 =
  32. 32.0.57 × 1.9 =
  33. 33.0.04 × 0.4 =
  34. 34.0.7 × 0.14 =
  35. 35.5.9 × 3.9 =
  36. 36.0.58 × 2.1 =
  37. 37.0.09 × 3.3 =
  38. 38.0.32 × 3.6 =
  39. 39.4.9 × 0.38 =
  40. 40.0.02 × 3.1 =

Answer key

  1. 3.344
  2. 2.945
  3. 1.36
  4. 1.4
  5. 11.04
  6. 1.008
  7. 0.244
  8. 0.182
  9. 1.786
  10. 0.063
  11. 0.986
  12. 0.198
  13. 0.22
  14. 0.702
  15. 1.078
  16. 0.021
  17. 7.7
  18. 0.076
  19. 0.752
  20. 1.68
  21. 0.426
  22. 0.365
  23. 1.26
  24. 0.99
  25. 0.35
  26. 1.802
  27. 0.356
  28. 2.88
  29. 6.12
  30. 2.992
  31. 1.364
  32. 1.083
  33. 0.016
  34. 0.098
  35. 23.01
  36. 1.218
  37. 0.297
  38. 1.152
  39. 1.862
  40. 0.062

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