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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 160 · 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. 1.1.7 × 0.06 =
  2. 2.0.7 × 0.21 =
  3. 3.0.76 × 3.1 =
  4. 4.4.9 × 0.11 =
  5. 5.0.39 × 0.7 =
  6. 6.0.88 × 1.1 =
  7. 7.0.27 × 1.9 =
  8. 8.0.45 × 3.1 =
  9. 9.4.3 × 0.5 =
  10. 10.2.6 × 2.2 =
  11. 11.0.18 × 3.4 =
  12. 12.0.89 × 1.4 =
  13. 13.1.6 × 0.2 =
  14. 14.7.1 × 1.3 =
  15. 15.0.94 × 1.4 =
  16. 16.7.2 × 2.8 =
  17. 17.2.8 × 0.12 =
  18. 18.6.7 × 3.1 =
  19. 19.3.3 × 0.21 =
  20. 20.4.3 × 2.8 =
  21. 21.9.8 × 1.1 =
  22. 22.1.8 × 2.5 =
  23. 23.4.8 × 3.4 =
  24. 24.0.37 × 0.3 =
  25. 25.0.39 × 1.2 =
  26. 26.0.65 × 0.3 =
  27. 27.0.32 × 0.5 =
  28. 28.7.9 × 0.29 =
  29. 29.7.6 × 1.9 =
  30. 30.0.72 × 0.8 =
  31. 31.0.58 × 0.2 =
  32. 32.0.68 × 0.7 =
  33. 33.3.3 × 2.3 =
  34. 34.0.29 × 2.5 =
  35. 35.0.16 × 2.8 =
  36. 36.4.7 × 1.2 =
  37. 37.0.05 × 3.8 =
  38. 38.0.29 × 1.4 =
  39. 39.0.53 × 1.1 =
  40. 40.6.4 × 0.17 =

Answer key

  1. 0.102
  2. 0.147
  3. 2.356
  4. 0.539
  5. 0.273
  6. 0.968
  7. 0.513
  8. 1.395
  9. 2.15
  10. 5.72
  11. 0.612
  12. 1.246
  13. 0.32
  14. 9.23
  15. 1.316
  16. 20.16
  17. 0.336
  18. 20.77
  19. 0.693
  20. 12.04
  21. 10.78
  22. 4.5
  23. 16.32
  24. 0.111
  25. 0.468
  26. 0.195
  27. 0.16
  28. 2.291
  29. 14.44
  30. 0.576
  31. 0.116
  32. 0.476
  33. 7.59
  34. 0.725
  35. 0.448
  36. 5.64
  37. 0.19
  38. 0.406
  39. 0.583
  40. 1.088

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