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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 132 · 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. 1.4.8 × 2.1 =
  2. 2.2.5 × 0.05 =
  3. 3.6.5 × 1.1 =
  4. 4.0.19 × 2.3 =
  5. 5.4.1 × 0.39 =
  6. 6.5.2 × 1.6 =
  7. 7.0.61 × 0.8 =
  8. 8.5.5 × 2.7 =
  9. 9.6.1 × 0.18 =
  10. 10.0.33 × 0.2 =
  11. 11.0.39 × 2.6 =
  12. 12.0.94 × 1.1 =
  13. 13.0.71 × 2.2 =
  14. 14.0.04 × 0.3 =
  15. 15.8.1 × 0.22 =
  16. 16.3.7 × 0.13 =
  17. 17.0.43 × 2.2 =
  18. 18.0.54 × 1.7 =
  19. 19.6.6 × 0.32 =
  20. 20.0.11 × 2.1 =
  21. 21.0.85 × 3.9 =
  22. 22.9.7 × 0.31 =
  23. 23.4.4 × 0.31 =
  24. 24.0.71 × 3.1 =
  25. 25.0.91 × 0.4 =
  26. 26.5.6 × 0.5 =
  27. 27.0.02 × 2.1 =
  28. 28.0.03 × 1.7 =
  29. 29.0.76 × 2.8 =
  30. 30.0.28 × 0.8 =
  31. 31.0.59 × 2.9 =
  32. 32.0.98 × 1.9 =
  33. 33.0.02 × 3.1 =
  34. 34.0.91 × 2.8 =
  35. 35.4.4 × 3.6 =
  36. 36.8.1 × 0.27 =
  37. 37.0.52 × 1.3 =
  38. 38.7.7 × 0.37 =
  39. 39.4.8 × 0.38 =
  40. 40.0.34 × 0.5 =

Answer key

  1. 10.08
  2. 0.125
  3. 7.15
  4. 0.437
  5. 1.599
  6. 8.32
  7. 0.488
  8. 14.85
  9. 1.098
  10. 0.066
  11. 1.014
  12. 1.034
  13. 1.562
  14. 0.012
  15. 1.782
  16. 0.481
  17. 0.946
  18. 0.918
  19. 2.112
  20. 0.231
  21. 3.315
  22. 3.007
  23. 1.364
  24. 2.201
  25. 0.364
  26. 2.8
  27. 0.042
  28. 0.051
  29. 2.128
  30. 0.224
  31. 1.711
  32. 1.862
  33. 0.062
  34. 2.548
  35. 15.84
  36. 2.187
  37. 0.676
  38. 2.849
  39. 1.824
  40. 0.17

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