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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 998 · 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. 1.0.91 × 0.8 =
  2. 2.4.7 × 0.11 =
  3. 3.0.07 × 3.1 =
  4. 4.0.7 × 0.11 =
  5. 5.0.94 × 0.6 =
  6. 6.0.33 × 1.3 =
  7. 7.7.4 × 0.18 =
  8. 8.5.1 × 1.5 =
  9. 9.0.08 × 1.9 =
  10. 10.0.19 × 0.3 =
  11. 11.0.81 × 1.3 =
  12. 12.0.4 × 0.29 =
  13. 13.0.4 × 0.17 =
  14. 14.2.6 × 1.1 =
  15. 15.0.65 × 1.7 =
  16. 16.1.3 × 2.1 =
  17. 17.0.22 × 3.1 =
  18. 18.0.87 × 3.4 =
  19. 19.0.25 × 1.8 =
  20. 20.9.4 × 0.4 =
  21. 21.0.67 × 0.4 =
  22. 22.0.78 × 3.5 =
  23. 23.0.79 × 1.1 =
  24. 24.5.6 × 0.6 =
  25. 25.0.46 × 2.3 =
  26. 26.0.56 × 0.5 =
  27. 27.0.4 × 0.36 =
  28. 28.0.19 × 2.6 =
  29. 29.0.55 × 0.9 =
  30. 30.8.6 × 1.2 =
  31. 31.9.5 × 0.13 =
  32. 32.0.28 × 2.8 =
  33. 33.0.79 × 2.7 =
  34. 34.5.6 × 0.36 =
  35. 35.0.31 × 0.9 =
  36. 36.9.6 × 0.22 =
  37. 37.0.83 × 2.1 =
  38. 38.0.91 × 2.2 =
  39. 39.0.89 × 1.1 =
  40. 40.0.79 × 2.5 =

Answer key

  1. 0.728
  2. 0.517
  3. 0.217
  4. 0.077
  5. 0.564
  6. 0.429
  7. 1.332
  8. 7.65
  9. 0.152
  10. 0.057
  11. 1.053
  12. 0.116
  13. 0.068
  14. 2.86
  15. 1.105
  16. 2.73
  17. 0.682
  18. 2.958
  19. 0.45
  20. 3.76
  21. 0.268
  22. 2.73
  23. 0.869
  24. 3.36
  25. 1.058
  26. 0.28
  27. 0.144
  28. 0.494
  29. 0.495
  30. 10.32
  31. 1.235
  32. 0.784
  33. 2.133
  34. 2.016
  35. 0.279
  36. 2.112
  37. 1.743
  38. 2.002
  39. 0.979
  40. 1.975

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