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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 484 · 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. 1.3.8 × 0.09 =
  2. 2.6.4 × 1.5 =
  3. 3.0.51 × 1.1 =
  4. 4.0.65 × 2.5 =
  5. 5.1.9 × 0.21 =
  6. 6.0.27 × 3.9 =
  7. 7.6.9 × 0.7 =
  8. 8.0.5 × 3.3 =
  9. 9.2.9 × 0.9 =
  10. 10.4.4 × 0.6 =
  11. 11.9.7 × 0.19 =
  12. 12.9.3 × 0.04 =
  13. 13.0.05 × 0.5 =
  14. 14.0.54 × 3.5 =
  15. 15.8.7 × 0.31 =
  16. 16.0.63 × 2.9 =
  17. 17.2.8 × 0.24 =
  18. 18.0.96 × 1.1 =
  19. 19.6.1 × 1.2 =
  20. 20.0.28 × 2.3 =
  21. 21.1.2 × 0.2 =
  22. 22.0.56 × 0.4 =
  23. 23.8.1 × 0.36 =
  24. 24.6.7 × 3.1 =
  25. 25.0.61 × 2.2 =
  26. 26.0.97 × 0.3 =
  27. 27.8.9 × 3.9 =
  28. 28.8.1 × 1.4 =
  29. 29.9.1 × 2.5 =
  30. 30.0.93 × 2.9 =
  31. 31.3.6 × 1.8 =
  32. 32.0.81 × 0.4 =
  33. 33.2.7 × 0.7 =
  34. 34.0.87 × 0.8 =
  35. 35.0.55 × 0.3 =
  36. 36.9.8 × 0.38 =
  37. 37.0.16 × 0.7 =
  38. 38.2.3 × 0.6 =
  39. 39.0.04 × 2.1 =
  40. 40.0.13 × 1.8 =

Answer key

  1. 0.342
  2. 9.6
  3. 0.561
  4. 1.625
  5. 0.399
  6. 1.053
  7. 4.83
  8. 1.65
  9. 2.61
  10. 2.64
  11. 1.843
  12. 0.372
  13. 0.025
  14. 1.89
  15. 2.697
  16. 1.827
  17. 0.672
  18. 1.056
  19. 7.32
  20. 0.644
  21. 0.24
  22. 0.224
  23. 2.916
  24. 20.77
  25. 1.342
  26. 0.291
  27. 34.71
  28. 11.34
  29. 22.75
  30. 2.697
  31. 6.48
  32. 0.324
  33. 1.89
  34. 0.696
  35. 0.165
  36. 3.724
  37. 0.112
  38. 1.38
  39. 0.084
  40. 0.234

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