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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 417 · 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. 1.5.3 × 0.18 =
  2. 2.9.9 × 2.5 =
  3. 3.0.51 × 0.3 =
  4. 4.0.8 × 2.7 =
  5. 5.3.1 × 0.39 =
  6. 6.6.3 × 0.33 =
  7. 7.2.5 × 3.4 =
  8. 8.0.86 × 1.8 =
  9. 9.0.75 × 0.8 =
  10. 10.0.59 × 1.3 =
  11. 11.0.32 × 3.8 =
  12. 12.6.9 × 0.7 =
  13. 13.0.3 × 3.8 =
  14. 14.9.4 × 0.2 =
  15. 15.0.02 × 1.4 =
  16. 16.0.9 × 0.22 =
  17. 17.0.03 × 2.5 =
  18. 18.0.5 × 0.03 =
  19. 19.2.7 × 0.34 =
  20. 20.9.8 × 1.5 =
  21. 21.4.2 × 0.19 =
  22. 22.0.11 × 3.9 =
  23. 23.0.66 × 1.8 =
  24. 24.0.25 × 0.6 =
  25. 25.0.96 × 0.7 =
  26. 26.0.48 × 1.3 =
  27. 27.9.7 × 1.7 =
  28. 28.0.52 × 1.1 =
  29. 29.0.95 × 1.7 =
  30. 30.3.6 × 2.1 =
  31. 31.1.4 × 0.9 =
  32. 32.7.2 × 0.8 =
  33. 33.3.9 × 0.02 =
  34. 34.8.8 × 0.32 =
  35. 35.0.82 × 0.9 =
  36. 36.0.22 × 2.1 =
  37. 37.4.7 × 0.08 =
  38. 38.7.1 × 1.9 =
  39. 39.0.19 × 0.6 =
  40. 40.1.4 × 0.16 =

Answer key

  1. 0.954
  2. 24.75
  3. 0.153
  4. 2.16
  5. 1.209
  6. 2.079
  7. 8.5
  8. 1.548
  9. 0.6
  10. 0.767
  11. 1.216
  12. 4.83
  13. 1.14
  14. 1.88
  15. 0.028
  16. 0.198
  17. 0.075
  18. 0.015
  19. 0.918
  20. 14.7
  21. 0.798
  22. 0.429
  23. 1.188
  24. 0.15
  25. 0.672
  26. 0.624
  27. 16.49
  28. 0.572
  29. 1.615
  30. 7.56
  31. 1.26
  32. 5.76
  33. 0.078
  34. 2.816
  35. 0.738
  36. 0.462
  37. 0.376
  38. 13.49
  39. 0.114
  40. 0.224

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