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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 533 · 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. 1.0.71 × 1.4 =
  2. 2.0.26 × 0.9 =
  3. 3.4.1 × 1.1 =
  4. 4.1.6 × 0.9 =
  5. 5.0.4 × 0.31 =
  6. 6.7.7 × 0.19 =
  7. 7.0.61 × 2.2 =
  8. 8.0.34 × 2.4 =
  9. 9.0.87 × 0.9 =
  10. 10.0.36 × 1.2 =
  11. 11.6.7 × 0.5 =
  12. 12.0.63 × 1.1 =
  13. 13.0.31 × 1.1 =
  14. 14.0.97 × 2.6 =
  15. 15.2.6 × 0.4 =
  16. 16.1.1 × 2.9 =
  17. 17.7.2 × 2.8 =
  18. 18.0.43 × 2.2 =
  19. 19.0.33 × 3.1 =
  20. 20.0.33 × 0.2 =
  21. 21.0.27 × 1.5 =
  22. 22.0.17 × 2.6 =
  23. 23.0.04 × 3.9 =
  24. 24.3.8 × 3.4 =
  25. 25.0.25 × 1.2 =
  26. 26.0.46 × 2.2 =
  27. 27.0.18 × 0.4 =
  28. 28.4.1 × 0.19 =
  29. 29.0.55 × 3.1 =
  30. 30.0.83 × 2.8 =
  31. 31.0.81 × 2.1 =
  32. 32.0.27 × 2.8 =
  33. 33.3.6 × 0.23 =
  34. 34.6.9 × 0.13 =
  35. 35.1.3 × 0.4 =
  36. 36.5.1 × 0.15 =
  37. 37.0.91 × 0.5 =
  38. 38.4.9 × 0.04 =
  39. 39.0.8 × 0.08 =
  40. 40.1.1 × 0.6 =

Answer key

  1. 0.994
  2. 0.234
  3. 4.51
  4. 1.44
  5. 0.124
  6. 1.463
  7. 1.342
  8. 0.816
  9. 0.783
  10. 0.432
  11. 3.35
  12. 0.693
  13. 0.341
  14. 2.522
  15. 1.04
  16. 3.19
  17. 20.16
  18. 0.946
  19. 1.023
  20. 0.066
  21. 0.405
  22. 0.442
  23. 0.156
  24. 12.92
  25. 0.3
  26. 1.012
  27. 0.072
  28. 0.779
  29. 1.705
  30. 2.324
  31. 1.701
  32. 0.756
  33. 0.828
  34. 0.897
  35. 0.52
  36. 0.765
  37. 0.455
  38. 0.196
  39. 0.064
  40. 0.66

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