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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 769 · 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. 1.9.1 × 0.16 =
  2. 2.0.45 × 2.8 =
  3. 3.0.15 × 1.8 =
  4. 4.0.22 × 2.7 =
  5. 5.4.4 × 0.03 =
  6. 6.0.77 × 1.1 =
  7. 7.8.3 × 0.28 =
  8. 8.0.04 × 2.7 =
  9. 9.0.49 × 2.8 =
  10. 10.0.67 × 3.8 =
  11. 11.0.77 × 3.3 =
  12. 12.0.51 × 2.9 =
  13. 13.3.7 × 1.1 =
  14. 14.0.99 × 1.8 =
  15. 15.1.6 × 3.7 =
  16. 16.0.31 × 3.4 =
  17. 17.0.94 × 3.2 =
  18. 18.0.06 × 2.1 =
  19. 19.0.27 × 1.7 =
  20. 20.0.09 × 0.8 =
  21. 21.0.78 × 0.5 =
  22. 22.0.61 × 0.5 =
  23. 23.9.5 × 3.1 =
  24. 24.8.5 × 1.4 =
  25. 25.0.4 × 0.39 =
  26. 26.4.6 × 3.9 =
  27. 27.1.1 × 0.02 =
  28. 28.8.3 × 0.22 =
  29. 29.1.1 × 0.17 =
  30. 30.2.9 × 3.4 =
  31. 31.8.3 × 0.25 =
  32. 32.6.9 × 0.36 =
  33. 33.0.8 × 2.4 =
  34. 34.0.3 × 1.7 =
  35. 35.0.11 × 1.6 =
  36. 36.2.5 × 0.09 =
  37. 37.3.2 × 0.7 =
  38. 38.4.8 × 0.32 =
  39. 39.0.28 × 1.2 =
  40. 40.0.91 × 2.1 =

Answer key

  1. 1.456
  2. 1.26
  3. 0.27
  4. 0.594
  5. 0.132
  6. 0.847
  7. 2.324
  8. 0.108
  9. 1.372
  10. 2.546
  11. 2.541
  12. 1.479
  13. 4.07
  14. 1.782
  15. 5.92
  16. 1.054
  17. 3.008
  18. 0.126
  19. 0.459
  20. 0.072
  21. 0.39
  22. 0.305
  23. 29.45
  24. 11.9
  25. 0.156
  26. 17.94
  27. 0.022
  28. 1.826
  29. 0.187
  30. 9.86
  31. 2.075
  32. 2.484
  33. 1.92
  34. 0.51
  35. 0.176
  36. 0.225
  37. 2.24
  38. 1.536
  39. 0.336
  40. 1.911

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