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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 120 · 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. 1.0.17 × 1.1 =
  2. 2.8.9 × 0.07 =
  3. 3.0.32 × 2.5 =
  4. 4.0.32 × 0.6 =
  5. 5.0.08 × 0.2 =
  6. 6.0.67 × 0.8 =
  7. 7.7.7 × 0.37 =
  8. 8.0.04 × 1.6 =
  9. 9.1.1 × 0.16 =
  10. 10.0.8 × 3.5 =
  11. 11.0.27 × 0.2 =
  12. 12.0.54 × 3.5 =
  13. 13.1.3 × 0.26 =
  14. 14.2.1 × 0.26 =
  15. 15.5.7 × 0.04 =
  16. 16.0.29 × 1.2 =
  17. 17.1.1 × 0.19 =
  18. 18.0.53 × 3.4 =
  19. 19.0.11 × 0.2 =
  20. 20.8.1 × 1.5 =
  21. 21.0.34 × 0.8 =
  22. 22.0.58 × 2.4 =
  23. 23.0.54 × 2.6 =
  24. 24.0.3 × 0.19 =
  25. 25.4.1 × 0.3 =
  26. 26.3.9 × 0.06 =
  27. 27.0.71 × 2.1 =
  28. 28.0.53 × 0.2 =
  29. 29.0.57 × 2.6 =
  30. 30.5.9 × 0.07 =
  31. 31.4.9 × 1.2 =
  32. 32.0.49 × 3.6 =
  33. 33.6.2 × 3.2 =
  34. 34.6.5 × 0.05 =
  35. 35.4.1 × 2.1 =
  36. 36.0.54 × 1.4 =
  37. 37.0.82 × 0.6 =
  38. 38.6.6 × 0.25 =
  39. 39.0.09 × 1.1 =
  40. 40.0.48 × 0.2 =

Answer key

  1. 0.187
  2. 0.623
  3. 0.8
  4. 0.192
  5. 0.016
  6. 0.536
  7. 2.849
  8. 0.064
  9. 0.176
  10. 2.8
  11. 0.054
  12. 1.89
  13. 0.338
  14. 0.546
  15. 0.228
  16. 0.348
  17. 0.209
  18. 1.802
  19. 0.022
  20. 12.15
  21. 0.272
  22. 1.392
  23. 1.404
  24. 0.057
  25. 1.23
  26. 0.234
  27. 1.491
  28. 0.106
  29. 1.482
  30. 0.413
  31. 5.88
  32. 1.764
  33. 19.84
  34. 0.325
  35. 8.61
  36. 0.756
  37. 0.492
  38. 1.65
  39. 0.099
  40. 0.096

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