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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 568 · 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. 1.1.7 × 0.23 =
  2. 2.0.55 × 1.1 =
  3. 3.2.4 × 0.07 =
  4. 4.8.9 × 0.37 =
  5. 5.0.35 × 1.3 =
  6. 6.0.87 × 0.9 =
  7. 7.0.83 × 1.9 =
  8. 8.0.72 × 2.8 =
  9. 9.1.7 × 0.21 =
  10. 10.8.5 × 1.5 =
  11. 11.3.3 × 0.7 =
  12. 12.0.31 × 0.4 =
  13. 13.0.44 × 0.5 =
  14. 14.2.8 × 2.7 =
  15. 15.4.2 × 0.02 =
  16. 16.0.02 × 2.5 =
  17. 17.5.4 × 0.26 =
  18. 18.7.1 × 3.9 =
  19. 19.0.74 × 2.3 =
  20. 20.0.45 × 0.9 =
  21. 21.7.1 × 0.32 =
  22. 22.0.8 × 1.9 =
  23. 23.1.1 × 0.21 =
  24. 24.0.7 × 1.1 =
  25. 25.0.53 × 2.5 =
  26. 26.0.23 × 1.1 =
  27. 27.0.35 × 3.6 =
  28. 28.0.25 × 2.4 =
  29. 29.0.57 × 1.6 =
  30. 30.0.81 × 3.2 =
  31. 31.0.15 × 3.1 =
  32. 32.0.7 × 0.26 =
  33. 33.6.7 × 1.4 =
  34. 34.0.91 × 1.8 =
  35. 35.6.9 × 0.06 =
  36. 36.0.16 × 2.6 =
  37. 37.9.5 × 0.08 =
  38. 38.0.27 × 3.6 =
  39. 39.0.91 × 0.3 =
  40. 40.0.77 × 3.6 =

Answer key

  1. 0.391
  2. 0.605
  3. 0.168
  4. 3.293
  5. 0.455
  6. 0.783
  7. 1.577
  8. 2.016
  9. 0.357
  10. 12.75
  11. 2.31
  12. 0.124
  13. 0.22
  14. 7.56
  15. 0.084
  16. 0.05
  17. 1.404
  18. 27.69
  19. 1.702
  20. 0.405
  21. 2.272
  22. 1.52
  23. 0.231
  24. 0.77
  25. 1.325
  26. 0.253
  27. 1.26
  28. 0.6
  29. 0.912
  30. 2.592
  31. 0.465
  32. 0.182
  33. 9.38
  34. 1.638
  35. 0.414
  36. 0.416
  37. 0.76
  38. 0.972
  39. 0.273
  40. 2.772

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