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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 203 · 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. 1.8.1 × 0.16 =
  2. 2.0.27 × 3.4 =
  3. 3.8.7 × 0.39 =
  4. 4.4.1 × 3.5 =
  5. 5.0.11 × 3.6 =
  6. 6.3.3 × 3.1 =
  7. 7.0.21 × 1.7 =
  8. 8.0.71 × 0.9 =
  9. 9.9.5 × 1.1 =
  10. 10.0.81 × 0.5 =
  11. 11.0.81 × 1.1 =
  12. 12.0.26 × 3.8 =
  13. 13.0.25 × 3.7 =
  14. 14.0.4 × 2.4 =
  15. 15.0.18 × 0.8 =
  16. 16.0.81 × 2.2 =
  17. 17.7.2 × 0.23 =
  18. 18.1.7 × 0.11 =
  19. 19.0.75 × 0.7 =
  20. 20.0.53 × 2.2 =
  21. 21.0.6 × 2.4 =
  22. 22.9.7 × 3.1 =
  23. 23.0.13 × 2.3 =
  24. 24.0.66 × 0.2 =
  25. 25.0.72 × 1.2 =
  26. 26.8.7 × 0.6 =
  27. 27.8.3 × 0.05 =
  28. 28.8.7 × 0.25 =
  29. 29.0.51 × 1.1 =
  30. 30.5.3 × 0.21 =
  31. 31.6.6 × 1.1 =
  32. 32.9.3 × 2.4 =
  33. 33.7.9 × 0.8 =
  34. 34.1.5 × 0.07 =
  35. 35.0.74 × 2.1 =
  36. 36.0.05 × 3.1 =
  37. 37.0.99 × 0.8 =
  38. 38.4.6 × 2.1 =
  39. 39.5.8 × 0.31 =
  40. 40.1.1 × 0.24 =

Answer key

  1. 1.296
  2. 0.918
  3. 3.393
  4. 14.35
  5. 0.396
  6. 10.23
  7. 0.357
  8. 0.639
  9. 10.45
  10. 0.405
  11. 0.891
  12. 0.988
  13. 0.925
  14. 0.96
  15. 0.144
  16. 1.782
  17. 1.656
  18. 0.187
  19. 0.525
  20. 1.166
  21. 1.44
  22. 30.07
  23. 0.299
  24. 0.132
  25. 0.864
  26. 5.22
  27. 0.415
  28. 2.175
  29. 0.561
  30. 1.113
  31. 7.26
  32. 22.32
  33. 6.32
  34. 0.105
  35. 1.554
  36. 0.155
  37. 0.792
  38. 9.66
  39. 1.798
  40. 0.264

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