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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 885 · 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. 1.2.3 × 2.6 =
  2. 2.0.79 × 0.4 =
  3. 3.2.8 × 3.8 =
  4. 4.2.1 × 0.14 =
  5. 5.1.6 × 2.3 =
  6. 6.9.2 × 0.11 =
  7. 7.0.79 × 2.3 =
  8. 8.0.08 × 1.1 =
  9. 9.2.7 × 3.1 =
  10. 10.6.4 × 1.5 =
  11. 11.0.41 × 2.1 =
  12. 12.3.9 × 2.1 =
  13. 13.0.71 × 3.6 =
  14. 14.0.62 × 0.9 =
  15. 15.0.65 × 1.5 =
  16. 16.0.83 × 1.1 =
  17. 17.0.82 × 1.9 =
  18. 18.0.52 × 1.4 =
  19. 19.0.66 × 2.1 =
  20. 20.0.82 × 0.9 =
  21. 21.2.2 × 1.4 =
  22. 22.0.55 × 0.9 =
  23. 23.0.77 × 1.8 =
  24. 24.5.1 × 0.11 =
  25. 25.0.28 × 1.7 =
  26. 26.2.4 × 1.1 =
  27. 27.3.5 × 0.26 =
  28. 28.0.33 × 3.3 =
  29. 29.0.17 × 1.1 =
  30. 30.1.8 × 3.7 =
  31. 31.0.28 × 0.9 =
  32. 32.1.1 × 0.5 =
  33. 33.0.72 × 1.2 =
  34. 34.0.23 × 0.6 =
  35. 35.0.39 × 1.2 =
  36. 36.6.6 × 1.6 =
  37. 37.0.98 × 2.9 =
  38. 38.5.8 × 0.4 =
  39. 39.7.5 × 3.7 =
  40. 40.4.1 × 3.1 =

Answer key

  1. 5.98
  2. 0.316
  3. 10.64
  4. 0.294
  5. 3.68
  6. 1.012
  7. 1.817
  8. 0.088
  9. 8.37
  10. 9.6
  11. 0.861
  12. 8.19
  13. 2.556
  14. 0.558
  15. 0.975
  16. 0.913
  17. 1.558
  18. 0.728
  19. 1.386
  20. 0.738
  21. 3.08
  22. 0.495
  23. 1.386
  24. 0.561
  25. 0.476
  26. 2.64
  27. 0.91
  28. 1.089
  29. 0.187
  30. 6.66
  31. 0.252
  32. 0.55
  33. 0.864
  34. 0.138
  35. 0.468
  36. 10.56
  37. 2.842
  38. 2.32
  39. 27.75
  40. 12.71

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