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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 108 · 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. 1.0.66 × 3.7 =
  2. 2.0.15 × 3.1 =
  3. 3.0.51 × 3.8 =
  4. 4.0.86 × 3.8 =
  5. 5.8.4 × 1.2 =
  6. 6.2.2 × 2.9 =
  7. 7.0.41 × 3.7 =
  8. 8.0.46 × 2.6 =
  9. 9.0.02 × 0.6 =
  10. 10.0.28 × 3.9 =
  11. 11.0.81 × 1.2 =
  12. 12.0.07 × 3.2 =
  13. 13.0.31 × 0.8 =
  14. 14.0.26 × 1.5 =
  15. 15.0.41 × 3.8 =
  16. 16.0.29 × 2.6 =
  17. 17.9.6 × 0.26 =
  18. 18.0.85 × 1.1 =
  19. 19.4.1 × 0.08 =
  20. 20.3.8 × 0.19 =
  21. 21.0.27 × 1.6 =
  22. 22.0.11 × 3.4 =
  23. 23.7.8 × 0.31 =
  24. 24.0.31 × 1.1 =
  25. 25.0.7 × 2.8 =
  26. 26.0.28 × 0.2 =
  27. 27.1.6 × 0.16 =
  28. 28.7.2 × 0.17 =
  29. 29.3.2 × 1.8 =
  30. 30.8.2 × 3.3 =
  31. 31.0.18 × 2.3 =
  32. 32.0.58 × 3.4 =
  33. 33.0.26 × 1.4 =
  34. 34.2.4 × 0.36 =
  35. 35.0.64 × 1.6 =
  36. 36.0.13 × 0.5 =
  37. 37.0.14 × 1.3 =
  38. 38.6.2 × 0.27 =
  39. 39.2.1 × 0.24 =
  40. 40.3.2 × 2.5 =

Answer key

  1. 2.442
  2. 0.465
  3. 1.938
  4. 3.268
  5. 10.08
  6. 6.38
  7. 1.517
  8. 1.196
  9. 0.012
  10. 1.092
  11. 0.972
  12. 0.224
  13. 0.248
  14. 0.39
  15. 1.558
  16. 0.754
  17. 2.496
  18. 0.935
  19. 0.328
  20. 0.722
  21. 0.432
  22. 0.374
  23. 2.418
  24. 0.341
  25. 1.96
  26. 0.056
  27. 0.256
  28. 1.224
  29. 5.76
  30. 27.06
  31. 0.414
  32. 1.972
  33. 0.364
  34. 0.864
  35. 1.024
  36. 0.065
  37. 0.182
  38. 1.674
  39. 0.504
  40. 8

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