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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 836 · 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. 1.0.29 × 3.1 =
  2. 2.0.13 × 3.2 =
  3. 3.1.1 × 0.27 =
  4. 4.7.1 × 3.2 =
  5. 5.3.1 × 0.06 =
  6. 6.8.8 × 1.2 =
  7. 7.0.72 × 3.8 =
  8. 8.5.1 × 0.39 =
  9. 9.0.49 × 0.6 =
  10. 10.4.9 × 3.3 =
  11. 11.0.28 × 2.4 =
  12. 12.0.42 × 1.2 =
  13. 13.0.05 × 2.9 =
  14. 14.0.83 × 0.7 =
  15. 15.0.8 × 0.39 =
  16. 16.8.1 × 3.7 =
  17. 17.0.68 × 3.1 =
  18. 18.0.55 × 1.3 =
  19. 19.4.5 × 0.11 =
  20. 20.2.2 × 0.19 =
  21. 21.0.26 × 3.7 =
  22. 22.6.5 × 1.3 =
  23. 23.8.2 × 0.11 =
  24. 24.1.3 × 0.05 =
  25. 25.7.3 × 0.09 =
  26. 26.0.62 × 0.8 =
  27. 27.0.77 × 1.3 =
  28. 28.0.48 × 2.2 =
  29. 29.0.85 × 1.9 =
  30. 30.0.8 × 1.1 =
  31. 31.7.4 × 0.36 =
  32. 32.0.37 × 3.4 =
  33. 33.0.23 × 0.8 =
  34. 34.0.82 × 2.8 =
  35. 35.0.07 × 3.1 =
  36. 36.0.79 × 1.9 =
  37. 37.1.8 × 0.31 =
  38. 38.1.3 × 1.9 =
  39. 39.6.7 × 0.05 =
  40. 40.0.92 × 2.8 =

Answer key

  1. 0.899
  2. 0.416
  3. 0.297
  4. 22.72
  5. 0.186
  6. 10.56
  7. 2.736
  8. 1.989
  9. 0.294
  10. 16.17
  11. 0.672
  12. 0.504
  13. 0.145
  14. 0.581
  15. 0.312
  16. 29.97
  17. 2.108
  18. 0.715
  19. 0.495
  20. 0.418
  21. 0.962
  22. 8.45
  23. 0.902
  24. 0.065
  25. 0.657
  26. 0.496
  27. 1.001
  28. 1.056
  29. 1.615
  30. 0.88
  31. 2.664
  32. 1.258
  33. 0.184
  34. 2.296
  35. 0.217
  36. 1.501
  37. 0.558
  38. 2.47
  39. 0.335
  40. 2.576

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