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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 280 · 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. 1.0.46 × 1.4 =
  2. 2.7.9 × 0.7 =
  3. 3.0.89 × 2.4 =
  4. 4.0.11 × 2.8 =
  5. 5.7.7 × 3.7 =
  6. 6.8.9 × 0.26 =
  7. 7.0.21 × 2.5 =
  8. 8.0.97 × 1.4 =
  9. 9.0.56 × 3.8 =
  10. 10.3.5 × 2.3 =
  11. 11.1.7 × 2.7 =
  12. 12.0.31 × 1.8 =
  13. 13.0.05 × 0.4 =
  14. 14.0.56 × 3.2 =
  15. 15.7.4 × 0.37 =
  16. 16.1.6 × 0.32 =
  17. 17.0.28 × 3.1 =
  18. 18.0.51 × 3.1 =
  19. 19.1.9 × 3.5 =
  20. 20.0.51 × 1.2 =
  21. 21.8.4 × 3.4 =
  22. 22.2.8 × 0.12 =
  23. 23.0.93 × 1.4 =
  24. 24.0.11 × 0.7 =
  25. 25.1.9 × 1.1 =
  26. 26.6.2 × 0.5 =
  27. 27.5.5 × 0.13 =
  28. 28.0.81 × 1.3 =
  29. 29.7.4 × 0.18 =
  30. 30.0.77 × 0.6 =
  31. 31.0.66 × 3.1 =
  32. 32.1.5 × 0.9 =
  33. 33.1.1 × 0.11 =
  34. 34.0.71 × 1.1 =
  35. 35.1.1 × 1.6 =
  36. 36.3.5 × 0.9 =
  37. 37.1.1 × 0.29 =
  38. 38.1.6 × 1.3 =
  39. 39.6.6 × 0.17 =
  40. 40.0.9 × 0.2 =

Answer key

  1. 0.644
  2. 5.53
  3. 2.136
  4. 0.308
  5. 28.49
  6. 2.314
  7. 0.525
  8. 1.358
  9. 2.128
  10. 8.05
  11. 4.59
  12. 0.558
  13. 0.02
  14. 1.792
  15. 2.738
  16. 0.512
  17. 0.868
  18. 1.581
  19. 6.65
  20. 0.612
  21. 28.56
  22. 0.336
  23. 1.302
  24. 0.077
  25. 2.09
  26. 3.1
  27. 0.715
  28. 1.053
  29. 1.332
  30. 0.462
  31. 2.046
  32. 1.35
  33. 0.121
  34. 0.781
  35. 1.76
  36. 3.15
  37. 0.319
  38. 2.08
  39. 1.122
  40. 0.18

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