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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 368 · 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. 1.0.89 × 0.2 =
  2. 2.0.04 × 2.1 =
  3. 3.5.5 × 0.3 =
  4. 4.0.59 × 2.2 =
  5. 5.0.21 × 2.6 =
  6. 6.3.9 × 3.3 =
  7. 7.4.4 × 1.2 =
  8. 8.3.9 × 0.24 =
  9. 9.0.23 × 1.3 =
  10. 10.1.2 × 3.9 =
  11. 11.0.91 × 0.3 =
  12. 12.0.92 × 0.9 =
  13. 13.7.1 × 3.7 =
  14. 14.0.11 × 1.9 =
  15. 15.8.9 × 2.7 =
  16. 16.7.7 × 0.11 =
  17. 17.0.24 × 2.3 =
  18. 18.0.83 × 2.6 =
  19. 19.4.6 × 0.8 =
  20. 20.0.3 × 0.17 =
  21. 21.8.9 × 0.17 =
  22. 22.0.56 × 3.1 =
  23. 23.0.61 × 3.2 =
  24. 24.9.4 × 0.31 =
  25. 25.9.6 × 0.11 =
  26. 26.0.11 × 2.1 =
  27. 27.0.5 × 0.12 =
  28. 28.0.31 × 2.5 =
  29. 29.0.56 × 1.2 =
  30. 30.2.6 × 0.05 =
  31. 31.6.8 × 0.29 =
  32. 32.5.1 × 3.4 =
  33. 33.0.82 × 3.5 =
  34. 34.0.96 × 1.5 =
  35. 35.2.7 × 0.34 =
  36. 36.0.25 × 1.2 =
  37. 37.0.16 × 0.8 =
  38. 38.4.5 × 0.11 =
  39. 39.6.4 × 3.9 =
  40. 40.0.96 × 0.5 =

Answer key

  1. 0.178
  2. 0.084
  3. 1.65
  4. 1.298
  5. 0.546
  6. 12.87
  7. 5.28
  8. 0.936
  9. 0.299
  10. 4.68
  11. 0.273
  12. 0.828
  13. 26.27
  14. 0.209
  15. 24.03
  16. 0.847
  17. 0.552
  18. 2.158
  19. 3.68
  20. 0.051
  21. 1.513
  22. 1.736
  23. 1.952
  24. 2.914
  25. 1.056
  26. 0.231
  27. 0.06
  28. 0.775
  29. 0.672
  30. 0.13
  31. 1.972
  32. 17.34
  33. 2.87
  34. 1.44
  35. 0.918
  36. 0.3
  37. 0.128
  38. 0.495
  39. 24.96
  40. 0.48

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