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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 382 · 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. 1.0.17 × 2.2 =
  2. 2.1.5 × 0.14 =
  3. 3.0.24 × 2.1 =
  4. 4.1.1 × 0.9 =
  5. 5.0.04 × 3.2 =
  6. 6.8.4 × 0.5 =
  7. 7.4.1 × 0.21 =
  8. 8.0.54 × 0.2 =
  9. 9.9.1 × 1.7 =
  10. 10.0.5 × 0.4 =
  11. 11.0.2 × 0.36 =
  12. 12.6.5 × 0.3 =
  13. 13.0.27 × 1.4 =
  14. 14.8.7 × 0.3 =
  15. 15.0.76 × 3.7 =
  16. 16.0.04 × 2.5 =
  17. 17.3.4 × 2.1 =
  18. 18.1.8 × 0.34 =
  19. 19.2.9 × 0.25 =
  20. 20.7.1 × 0.26 =
  21. 21.0.26 × 1.3 =
  22. 22.3.1 × 1.1 =
  23. 23.0.99 × 3.8 =
  24. 24.3.4 × 0.19 =
  25. 25.9.8 × 0.08 =
  26. 26.2.8 × 0.09 =
  27. 27.0.81 × 1.8 =
  28. 28.0.64 × 1.3 =
  29. 29.2.6 × 3.7 =
  30. 30.0.02 × 3.7 =
  31. 31.8.5 × 3.3 =
  32. 32.0.62 × 3.1 =
  33. 33.5.8 × 0.03 =
  34. 34.0.86 × 2.2 =
  35. 35.0.05 × 2.8 =
  36. 36.0.51 × 1.8 =
  37. 37.9.1 × 0.25 =
  38. 38.0.25 × 2.2 =
  39. 39.0.7 × 0.14 =
  40. 40.8.2 × 0.34 =

Answer key

  1. 0.374
  2. 0.21
  3. 0.504
  4. 0.99
  5. 0.128
  6. 4.2
  7. 0.861
  8. 0.108
  9. 15.47
  10. 0.2
  11. 0.072
  12. 1.95
  13. 0.378
  14. 2.61
  15. 2.812
  16. 0.1
  17. 7.14
  18. 0.612
  19. 0.725
  20. 1.846
  21. 0.338
  22. 3.41
  23. 3.762
  24. 0.646
  25. 0.784
  26. 0.252
  27. 1.458
  28. 0.832
  29. 9.62
  30. 0.074
  31. 28.05
  32. 1.922
  33. 0.174
  34. 1.892
  35. 0.14
  36. 0.918
  37. 2.275
  38. 0.55
  39. 0.098
  40. 2.788

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