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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 790 · 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. 1.0.46 × 3.7 =
  2. 2.0.17 × 0.9 =
  3. 3.8.5 × 0.09 =
  4. 4.8.2 × 0.35 =
  5. 5.0.11 × 0.7 =
  6. 6.0.66 × 2.8 =
  7. 7.0.49 × 2.3 =
  8. 8.0.96 × 0.2 =
  9. 9.5.8 × 0.13 =
  10. 10.0.91 × 2.3 =
  11. 11.5.3 × 3.2 =
  12. 12.8.3 × 3.1 =
  13. 13.0.42 × 1.3 =
  14. 14.8.1 × 0.24 =
  15. 15.0.36 × 2.8 =
  16. 16.3.9 × 1.2 =
  17. 17.0.99 × 3.4 =
  18. 18.3.5 × 2.5 =
  19. 19.7.1 × 0.26 =
  20. 20.5.6 × 0.08 =
  21. 21.3.1 × 0.2 =
  22. 22.2.5 × 0.6 =
  23. 23.0.08 × 1.6 =
  24. 24.0.64 × 0.5 =
  25. 25.0.2 × 0.25 =
  26. 26.6.2 × 0.39 =
  27. 27.1.1 × 3.4 =
  28. 28.0.61 × 2.7 =
  29. 29.2.7 × 0.3 =
  30. 30.8.1 × 3.5 =
  31. 31.0.93 × 1.8 =
  32. 32.5.6 × 1.5 =
  33. 33.0.28 × 2.1 =
  34. 34.0.73 × 3.2 =
  35. 35.0.47 × 1.6 =
  36. 36.0.6 × 0.22 =
  37. 37.2.7 × 0.8 =
  38. 38.2.8 × 1.1 =
  39. 39.0.09 × 0.2 =
  40. 40.0.71 × 3.2 =

Answer key

  1. 1.702
  2. 0.153
  3. 0.765
  4. 2.87
  5. 0.077
  6. 1.848
  7. 1.127
  8. 0.192
  9. 0.754
  10. 2.093
  11. 16.96
  12. 25.73
  13. 0.546
  14. 1.944
  15. 1.008
  16. 4.68
  17. 3.366
  18. 8.75
  19. 1.846
  20. 0.448
  21. 0.62
  22. 1.5
  23. 0.128
  24. 0.32
  25. 0.05
  26. 2.418
  27. 3.74
  28. 1.647
  29. 0.81
  30. 28.35
  31. 1.674
  32. 8.4
  33. 0.588
  34. 2.336
  35. 0.752
  36. 0.132
  37. 2.16
  38. 3.08
  39. 0.018
  40. 2.272

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