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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 250 · 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. 1.0.72 × 0.3 =
  2. 2.0.27 × 1.1 =
  3. 3.7.7 × 2.1 =
  4. 4.0.93 × 1.7 =
  5. 5.4.1 × 0.11 =
  6. 6.1.6 × 0.26 =
  7. 7.9.1 × 0.27 =
  8. 8.2.7 × 0.07 =
  9. 9.0.61 × 1.2 =
  10. 10.3.2 × 0.27 =
  11. 11.5.2 × 3.3 =
  12. 12.0.99 × 3.5 =
  13. 13.7.8 × 1.1 =
  14. 14.5.6 × 0.33 =
  15. 15.0.81 × 2.1 =
  16. 16.9.3 × 0.27 =
  17. 17.0.41 × 1.9 =
  18. 18.2.5 × 3.2 =
  19. 19.0.8 × 0.6 =
  20. 20.0.31 × 3.2 =
  21. 21.0.05 × 1.4 =
  22. 22.0.26 × 3.3 =
  23. 23.0.25 × 0.2 =
  24. 24.7.6 × 1.2 =
  25. 25.0.3 × 0.32 =
  26. 26.0.4 × 0.15 =
  27. 27.0.82 × 0.5 =
  28. 28.6.5 × 1.1 =
  29. 29.6.8 × 0.13 =
  30. 30.0.32 × 1.9 =
  31. 31.7.3 × 0.5 =
  32. 32.0.66 × 0.3 =
  33. 33.4.1 × 0.25 =
  34. 34.7.9 × 0.22 =
  35. 35.0.32 × 0.8 =
  36. 36.2.4 × 0.27 =
  37. 37.0.72 × 3.5 =
  38. 38.0.07 × 0.4 =
  39. 39.9.1 × 0.32 =
  40. 40.8.9 × 2.4 =

Answer key

  1. 0.216
  2. 0.297
  3. 16.17
  4. 1.581
  5. 0.451
  6. 0.416
  7. 2.457
  8. 0.189
  9. 0.732
  10. 0.864
  11. 17.16
  12. 3.465
  13. 8.58
  14. 1.848
  15. 1.701
  16. 2.511
  17. 0.779
  18. 8
  19. 0.48
  20. 0.992
  21. 0.07
  22. 0.858
  23. 0.05
  24. 9.12
  25. 0.096
  26. 0.06
  27. 0.41
  28. 7.15
  29. 0.884
  30. 0.608
  31. 3.65
  32. 0.198
  33. 1.025
  34. 1.738
  35. 0.256
  36. 0.648
  37. 2.52
  38. 0.028
  39. 2.912
  40. 21.36

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