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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 461 · 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. 1.0.51 × 2.2 =
  2. 2.0.55 × 1.5 =
  3. 3.9.1 × 0.06 =
  4. 4.7.8 × 0.11 =
  5. 5.9.5 × 0.31 =
  6. 6.9.2 × 0.4 =
  7. 7.3.1 × 0.04 =
  8. 8.7.7 × 0.6 =
  9. 9.5.8 × 0.34 =
  10. 10.2.6 × 0.28 =
  11. 11.0.7 × 0.33 =
  12. 12.0.46 × 0.2 =
  13. 13.0.7 × 0.16 =
  14. 14.4.1 × 0.9 =
  15. 15.0.8 × 1.7 =
  16. 16.3.6 × 1.1 =
  17. 17.3.1 × 0.17 =
  18. 18.8.6 × 0.3 =
  19. 19.0.29 × 3.1 =
  20. 20.8.2 × 0.9 =
  21. 21.0.03 × 2.3 =
  22. 22.0.13 × 3.6 =
  23. 23.1.5 × 2.2 =
  24. 24.8.7 × 0.24 =
  25. 25.7.3 × 0.21 =
  26. 26.3.6 × 0.17 =
  27. 27.7.1 × 0.3 =
  28. 28.2.3 × 0.31 =
  29. 29.0.66 × 3.5 =
  30. 30.8.1 × 2.1 =
  31. 31.0.94 × 0.5 =
  32. 32.8.1 × 0.33 =
  33. 33.0.35 × 2.7 =
  34. 34.0.11 × 3.3 =
  35. 35.0.47 × 2.6 =
  36. 36.0.03 × 1.1 =
  37. 37.8.3 × 0.05 =
  38. 38.0.79 × 1.1 =
  39. 39.0.25 × 0.2 =
  40. 40.3.6 × 1.3 =

Answer key

  1. 1.122
  2. 0.825
  3. 0.546
  4. 0.858
  5. 2.945
  6. 3.68
  7. 0.124
  8. 4.62
  9. 1.972
  10. 0.728
  11. 0.231
  12. 0.092
  13. 0.112
  14. 3.69
  15. 1.36
  16. 3.96
  17. 0.527
  18. 2.58
  19. 0.899
  20. 7.38
  21. 0.069
  22. 0.468
  23. 3.3
  24. 2.088
  25. 1.533
  26. 0.612
  27. 2.13
  28. 0.713
  29. 2.31
  30. 17.01
  31. 0.47
  32. 2.673
  33. 0.945
  34. 0.363
  35. 1.222
  36. 0.033
  37. 0.415
  38. 0.869
  39. 0.05
  40. 4.68

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