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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 806 · 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. 1.4.9 × 0.03 =
  2. 2.8.5 × 0.13 =
  3. 3.9.9 × 1.8 =
  4. 4.0.66 × 3.2 =
  5. 5.9.8 × 1.6 =
  6. 6.0.26 × 1.7 =
  7. 7.8.6 × 0.27 =
  8. 8.3.3 × 2.4 =
  9. 9.0.7 × 0.4 =
  10. 10.3.1 × 0.05 =
  11. 11.4.9 × 0.33 =
  12. 12.9.7 × 0.12 =
  13. 13.0.02 × 2.1 =
  14. 14.0.03 × 1.2 =
  15. 15.6.8 × 0.03 =
  16. 16.0.87 × 0.4 =
  17. 17.4.2 × 0.09 =
  18. 18.2.1 × 0.04 =
  19. 19.0.62 × 1.5 =
  20. 20.0.13 × 2.9 =
  21. 21.0.31 × 0.4 =
  22. 22.1.5 × 0.31 =
  23. 23.0.71 × 1.9 =
  24. 24.0.55 × 1.3 =
  25. 25.1.1 × 0.05 =
  26. 26.0.85 × 1.4 =
  27. 27.0.98 × 0.6 =
  28. 28.0.56 × 1.4 =
  29. 29.3.6 × 3.9 =
  30. 30.8.2 × 2.5 =
  31. 31.7.3 × 2.1 =
  32. 32.3.3 × 1.7 =
  33. 33.0.31 × 0.4 =
  34. 34.0.52 × 0.7 =
  35. 35.9.3 × 0.14 =
  36. 36.3.9 × 0.04 =
  37. 37.2.5 × 0.29 =
  38. 38.0.91 × 2.1 =
  39. 39.0.85 × 2.4 =
  40. 40.0.02 × 1.1 =

Answer key

  1. 0.147
  2. 1.105
  3. 17.82
  4. 2.112
  5. 15.68
  6. 0.442
  7. 2.322
  8. 7.92
  9. 0.28
  10. 0.155
  11. 1.617
  12. 1.164
  13. 0.042
  14. 0.036
  15. 0.204
  16. 0.348
  17. 0.378
  18. 0.084
  19. 0.93
  20. 0.377
  21. 0.124
  22. 0.465
  23. 1.349
  24. 0.715
  25. 0.055
  26. 1.19
  27. 0.588
  28. 0.784
  29. 14.04
  30. 20.5
  31. 15.33
  32. 5.61
  33. 0.124
  34. 0.364
  35. 1.302
  36. 0.156
  37. 0.725
  38. 1.911
  39. 2.04
  40. 0.022

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