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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 866 · 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. 1.0.83 × 0.6 =
  2. 2.0.03 × 1.3 =
  3. 3.0.71 × 3.8 =
  4. 4.0.17 × 1.2 =
  5. 5.0.48 × 2.3 =
  6. 6.0.73 × 1.3 =
  7. 7.0.21 × 1.2 =
  8. 8.0.47 × 0.9 =
  9. 9.0.45 × 3.3 =
  10. 10.1.1 × 1.1 =
  11. 11.0.33 × 3.1 =
  12. 12.0.9 × 1.6 =
  13. 13.0.25 × 3.3 =
  14. 14.5.1 × 0.11 =
  15. 15.8.7 × 3.8 =
  16. 16.8.3 × 2.7 =
  17. 17.9.2 × 0.11 =
  18. 18.9.9 × 0.12 =
  19. 19.5.5 × 3.7 =
  20. 20.0.44 × 2.1 =
  21. 21.0.62 × 1.1 =
  22. 22.0.3 × 0.17 =
  23. 23.5.1 × 1.8 =
  24. 24.4.5 × 0.29 =
  25. 25.0.41 × 3.2 =
  26. 26.0.76 × 1.5 =
  27. 27.0.9 × 0.38 =
  28. 28.0.36 × 0.9 =
  29. 29.6.6 × 0.3 =
  30. 30.0.61 × 3.1 =
  31. 31.1.5 × 0.09 =
  32. 32.0.39 × 2.4 =
  33. 33.1.3 × 0.14 =
  34. 34.5.8 × 0.38 =
  35. 35.3.5 × 0.3 =
  36. 36.0.35 × 3.9 =
  37. 37.7.2 × 0.08 =
  38. 38.2.2 × 0.03 =
  39. 39.3.2 × 0.05 =
  40. 40.0.11 × 0.2 =

Answer key

  1. 0.498
  2. 0.039
  3. 2.698
  4. 0.204
  5. 1.104
  6. 0.949
  7. 0.252
  8. 0.423
  9. 1.485
  10. 1.21
  11. 1.023
  12. 1.44
  13. 0.825
  14. 0.561
  15. 33.06
  16. 22.41
  17. 1.012
  18. 1.188
  19. 20.35
  20. 0.924
  21. 0.682
  22. 0.051
  23. 9.18
  24. 1.305
  25. 1.312
  26. 1.14
  27. 0.342
  28. 0.324
  29. 1.98
  30. 1.891
  31. 0.135
  32. 0.936
  33. 0.182
  34. 2.204
  35. 1.05
  36. 1.365
  37. 0.576
  38. 0.066
  39. 0.16
  40. 0.022

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