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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 905 · 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. 1.4.9 × 0.09 =
  2. 2.0.97 × 2.8 =
  3. 3.7.1 × 0.38 =
  4. 4.0.5 × 0.11 =
  5. 5.6.4 × 0.18 =
  6. 6.0.48 × 2.8 =
  7. 7.2.4 × 0.5 =
  8. 8.6.9 × 1.2 =
  9. 9.3.1 × 1.2 =
  10. 10.9.7 × 0.33 =
  11. 11.0.55 × 2.1 =
  12. 12.0.7 × 1.2 =
  13. 13.9.8 × 3.6 =
  14. 14.2.1 × 3.8 =
  15. 15.0.74 × 3.2 =
  16. 16.0.2 × 0.28 =
  17. 17.2.1 × 1.6 =
  18. 18.0.32 × 2.2 =
  19. 19.0.6 × 3.5 =
  20. 20.0.03 × 0.5 =
  21. 21.6.7 × 0.2 =
  22. 22.0.54 × 0.2 =
  23. 23.0.23 × 3.7 =
  24. 24.0.48 × 2.3 =
  25. 25.0.98 × 1.1 =
  26. 26.0.09 × 1.8 =
  27. 27.0.92 × 1.7 =
  28. 28.0.2 × 3.9 =
  29. 29.0.56 × 0.8 =
  30. 30.0.31 × 1.4 =
  31. 31.0.68 × 3.1 =
  32. 32.0.17 × 2.9 =
  33. 33.0.53 × 0.2 =
  34. 34.3.1 × 0.14 =
  35. 35.7.7 × 0.03 =
  36. 36.2.5 × 0.26 =
  37. 37.0.85 × 0.8 =
  38. 38.7.4 × 0.4 =
  39. 39.7.1 × 0.07 =
  40. 40.0.37 × 3.6 =

Answer key

  1. 0.441
  2. 2.716
  3. 2.698
  4. 0.055
  5. 1.152
  6. 1.344
  7. 1.2
  8. 8.28
  9. 3.72
  10. 3.201
  11. 1.155
  12. 0.84
  13. 35.28
  14. 7.98
  15. 2.368
  16. 0.056
  17. 3.36
  18. 0.704
  19. 2.1
  20. 0.015
  21. 1.34
  22. 0.108
  23. 0.851
  24. 1.104
  25. 1.078
  26. 0.162
  27. 1.564
  28. 0.78
  29. 0.448
  30. 0.434
  31. 2.108
  32. 0.493
  33. 0.106
  34. 0.434
  35. 0.231
  36. 0.65
  37. 0.68
  38. 2.96
  39. 0.497
  40. 1.332

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