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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 874 · 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. 1.1.1 × 0.31 =
  2. 2.9.2 × 0.21 =
  3. 3.5.2 × 0.28 =
  4. 4.0.11 × 3.1 =
  5. 5.5.4 × 2.5 =
  6. 6.1.6 × 0.31 =
  7. 7.3.3 × 3.3 =
  8. 8.0.87 × 2.4 =
  9. 9.0.27 × 3.7 =
  10. 10.0.67 × 2.6 =
  11. 11.0.89 × 2.8 =
  12. 12.0.4 × 0.09 =
  13. 13.2.8 × 0.36 =
  14. 14.0.73 × 1.3 =
  15. 15.2.9 × 0.05 =
  16. 16.0.21 × 2.9 =
  17. 17.0.7 × 0.11 =
  18. 18.3.8 × 3.1 =
  19. 19.0.06 × 0.5 =
  20. 20.0.51 × 3.9 =
  21. 21.0.95 × 1.2 =
  22. 22.0.29 × 1.4 =
  23. 23.2.5 × 0.37 =
  24. 24.0.78 × 3.4 =
  25. 25.0.31 × 3.8 =
  26. 26.3.4 × 0.13 =
  27. 27.9.1 × 1.1 =
  28. 28.0.79 × 1.8 =
  29. 29.6.6 × 0.2 =
  30. 30.0.6 × 1.6 =
  31. 31.0.52 × 3.1 =
  32. 32.0.5 × 0.4 =
  33. 33.0.41 × 3.1 =
  34. 34.0.02 × 1.3 =
  35. 35.0.67 × 1.1 =
  36. 36.0.8 × 0.16 =
  37. 37.0.71 × 3.1 =
  38. 38.0.75 × 2.3 =
  39. 39.0.84 × 3.7 =
  40. 40.0.88 × 1.4 =

Answer key

  1. 0.341
  2. 1.932
  3. 1.456
  4. 0.341
  5. 13.5
  6. 0.496
  7. 10.89
  8. 2.088
  9. 0.999
  10. 1.742
  11. 2.492
  12. 0.036
  13. 1.008
  14. 0.949
  15. 0.145
  16. 0.609
  17. 0.077
  18. 11.78
  19. 0.03
  20. 1.989
  21. 1.14
  22. 0.406
  23. 0.925
  24. 2.652
  25. 1.178
  26. 0.442
  27. 10.01
  28. 1.422
  29. 1.32
  30. 0.96
  31. 1.612
  32. 0.2
  33. 1.271
  34. 0.026
  35. 0.737
  36. 0.128
  37. 2.201
  38. 1.725
  39. 3.108
  40. 1.232

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