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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 845 · 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. 1.8.7 × 0.36 =
  2. 2.0.81 × 2.7 =
  3. 3.5.1 × 0.29 =
  4. 4.1.7 × 0.07 =
  5. 5.9.6 × 0.7 =
  6. 6.0.57 × 1.3 =
  7. 7.0.13 × 3.9 =
  8. 8.0.93 × 3.2 =
  9. 9.0.16 × 0.8 =
  10. 10.0.91 × 3.2 =
  11. 11.5.2 × 0.38 =
  12. 12.0.79 × 2.1 =
  13. 13.0.42 × 2.3 =
  14. 14.4.8 × 0.22 =
  15. 15.7.1 × 2.6 =
  16. 16.3.8 × 0.26 =
  17. 17.5.1 × 0.8 =
  18. 18.0.25 × 3.6 =
  19. 19.6.4 × 3.1 =
  20. 20.0.32 × 0.7 =
  21. 21.9.1 × 1.8 =
  22. 22.5.2 × 1.1 =
  23. 23.4.1 × 0.39 =
  24. 24.9.5 × 1.7 =
  25. 25.2.8 × 2.6 =
  26. 26.2.8 × 0.25 =
  27. 27.8.5 × 0.08 =
  28. 28.5.5 × 0.25 =
  29. 29.0.06 × 1.3 =
  30. 30.0.11 × 3.1 =
  31. 31.6.4 × 1.5 =
  32. 32.1.7 × 2.6 =
  33. 33.4.3 × 0.12 =
  34. 34.3.8 × 3.1 =
  35. 35.0.44 × 2.1 =
  36. 36.0.13 × 0.2 =
  37. 37.0.88 × 3.3 =
  38. 38.0.46 × 3.5 =
  39. 39.8.1 × 3.6 =
  40. 40.0.51 × 0.5 =

Answer key

  1. 3.132
  2. 2.187
  3. 1.479
  4. 0.119
  5. 6.72
  6. 0.741
  7. 0.507
  8. 2.976
  9. 0.128
  10. 2.912
  11. 1.976
  12. 1.659
  13. 0.966
  14. 1.056
  15. 18.46
  16. 0.988
  17. 4.08
  18. 0.9
  19. 19.84
  20. 0.224
  21. 16.38
  22. 5.72
  23. 1.599
  24. 16.15
  25. 7.28
  26. 0.7
  27. 0.68
  28. 1.375
  29. 0.078
  30. 0.341
  31. 9.6
  32. 4.42
  33. 0.516
  34. 11.78
  35. 0.924
  36. 0.026
  37. 2.904
  38. 1.61
  39. 29.16
  40. 0.255

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