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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 102 · 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. 1.0.34 × 3.2 =
  2. 2.0.91 × 1.5 =
  3. 3.3.5 × 3.1 =
  4. 4.8.7 × 0.28 =
  5. 5.7.5 × 2.6 =
  6. 6.0.99 × 3.5 =
  7. 7.1.3 × 0.13 =
  8. 8.0.89 × 0.9 =
  9. 9.5.8 × 3.5 =
  10. 10.5.5 × 0.7 =
  11. 11.4.9 × 0.3 =
  12. 12.3.3 × 1.3 =
  13. 13.7.6 × 1.5 =
  14. 14.7.9 × 0.25 =
  15. 15.0.25 × 0.5 =
  16. 16.0.26 × 1.8 =
  17. 17.0.74 × 2.7 =
  18. 18.6.1 × 0.6 =
  19. 19.2.5 × 3.4 =
  20. 20.0.29 × 3.7 =
  21. 21.2.3 × 0.02 =
  22. 22.0.26 × 2.8 =
  23. 23.7.8 × 1.1 =
  24. 24.7.1 × 0.32 =
  25. 25.0.14 × 0.2 =
  26. 26.0.83 × 1.1 =
  27. 27.0.45 × 1.8 =
  28. 28.7.1 × 0.03 =
  29. 29.0.2 × 2.6 =
  30. 30.0.19 × 3.4 =
  31. 31.0.97 × 1.2 =
  32. 32.0.86 × 0.9 =
  33. 33.0.05 × 1.9 =
  34. 34.0.62 × 3.1 =
  35. 35.0.15 × 1.9 =
  36. 36.1.1 × 1.1 =
  37. 37.2.3 × 0.37 =
  38. 38.0.61 × 2.1 =
  39. 39.0.62 × 1.7 =
  40. 40.4.1 × 0.17 =

Answer key

  1. 1.088
  2. 1.365
  3. 10.85
  4. 2.436
  5. 19.5
  6. 3.465
  7. 0.169
  8. 0.801
  9. 20.3
  10. 3.85
  11. 1.47
  12. 4.29
  13. 11.4
  14. 1.975
  15. 0.125
  16. 0.468
  17. 1.998
  18. 3.66
  19. 8.5
  20. 1.073
  21. 0.046
  22. 0.728
  23. 8.58
  24. 2.272
  25. 0.028
  26. 0.913
  27. 0.81
  28. 0.213
  29. 0.52
  30. 0.646
  31. 1.164
  32. 0.774
  33. 0.095
  34. 1.922
  35. 0.285
  36. 1.21
  37. 0.851
  38. 1.281
  39. 1.054
  40. 0.697

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