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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 834 · 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. 1.0.5 × 3.7 =
  2. 2.0.98 × 0.8 =
  3. 3.9.2 × 1.1 =
  4. 4.3.1 × 2.7 =
  5. 5.3.1 × 1.1 =
  6. 6.2.9 × 2.5 =
  7. 7.2.1 × 0.07 =
  8. 8.4.1 × 3.4 =
  9. 9.0.48 × 0.3 =
  10. 10.3.2 × 0.11 =
  11. 11.4.8 × 0.04 =
  12. 12.9.5 × 0.3 =
  13. 13.0.98 × 0.9 =
  14. 14.3.1 × 0.12 =
  15. 15.2.3 × 0.09 =
  16. 16.0.19 × 0.4 =
  17. 17.0.5 × 0.33 =
  18. 18.0.21 × 2.3 =
  19. 19.8.2 × 0.31 =
  20. 20.0.93 × 2.4 =
  21. 21.7.4 × 3.7 =
  22. 22.6.9 × 3.7 =
  23. 23.0.18 × 1.5 =
  24. 24.0.82 × 3.7 =
  25. 25.2.5 × 0.15 =
  26. 26.0.15 × 1.1 =
  27. 27.0.61 × 3.3 =
  28. 28.3.8 × 1.3 =
  29. 29.0.76 × 3.1 =
  30. 30.1.7 × 3.1 =
  31. 31.0.52 × 1.3 =
  32. 32.1.2 × 0.07 =
  33. 33.0.19 × 2.5 =
  34. 34.7.8 × 0.37 =
  35. 35.4.8 × 0.09 =
  36. 36.0.81 × 0.6 =
  37. 37.9.1 × 0.02 =
  38. 38.0.75 × 0.2 =
  39. 39.0.28 × 1.4 =
  40. 40.0.07 × 0.7 =

Answer key

  1. 1.85
  2. 0.784
  3. 10.12
  4. 8.37
  5. 3.41
  6. 7.25
  7. 0.147
  8. 13.94
  9. 0.144
  10. 0.352
  11. 0.192
  12. 2.85
  13. 0.882
  14. 0.372
  15. 0.207
  16. 0.076
  17. 0.165
  18. 0.483
  19. 2.542
  20. 2.232
  21. 27.38
  22. 25.53
  23. 0.27
  24. 3.034
  25. 0.375
  26. 0.165
  27. 2.013
  28. 4.94
  29. 2.356
  30. 5.27
  31. 0.676
  32. 0.084
  33. 0.475
  34. 2.886
  35. 0.432
  36. 0.486
  37. 0.182
  38. 0.15
  39. 0.392
  40. 0.049

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