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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 85 · 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. 1.8.4 × 2.1 =
  2. 2.0.96 × 0.6 =
  3. 3.9.1 × 0.06 =
  4. 4.0.53 × 0.4 =
  5. 5.6.6 × 3.2 =
  6. 6.2.6 × 2.7 =
  7. 7.2.4 × 0.03 =
  8. 8.9.6 × 2.9 =
  9. 9.2.5 × 0.07 =
  10. 10.0.85 × 1.9 =
  11. 11.3.6 × 0.26 =
  12. 12.4.4 × 2.4 =
  13. 13.0.23 × 1.1 =
  14. 14.2.2 × 3.6 =
  15. 15.0.11 × 3.9 =
  16. 16.2.3 × 0.05 =
  17. 17.9.1 × 0.4 =
  18. 18.9.3 × 0.09 =
  19. 19.1.6 × 0.8 =
  20. 20.7.3 × 1.2 =
  21. 21.0.25 × 0.3 =
  22. 22.5.1 × 0.13 =
  23. 23.3.2 × 2.1 =
  24. 24.8.1 × 2.1 =
  25. 25.3.9 × 1.4 =
  26. 26.0.75 × 0.7 =
  27. 27.3.8 × 2.5 =
  28. 28.4.1 × 0.11 =
  29. 29.2.2 × 2.7 =
  30. 30.4.1 × 0.31 =
  31. 31.1.7 × 0.05 =
  32. 32.9.8 × 0.36 =
  33. 33.7.3 × 0.09 =
  34. 34.0.34 × 2.8 =
  35. 35.0.39 × 2.8 =
  36. 36.8.7 × 3.1 =
  37. 37.0.81 × 1.5 =
  38. 38.0.54 × 1.7 =
  39. 39.3.2 × 2.1 =
  40. 40.0.89 × 2.7 =

Answer key

  1. 17.64
  2. 0.576
  3. 0.546
  4. 0.212
  5. 21.12
  6. 7.02
  7. 0.072
  8. 27.84
  9. 0.175
  10. 1.615
  11. 0.936
  12. 10.56
  13. 0.253
  14. 7.92
  15. 0.429
  16. 0.115
  17. 3.64
  18. 0.837
  19. 1.28
  20. 8.76
  21. 0.075
  22. 0.663
  23. 6.72
  24. 17.01
  25. 5.46
  26. 0.525
  27. 9.5
  28. 0.451
  29. 5.94
  30. 1.271
  31. 0.085
  32. 3.528
  33. 0.657
  34. 0.952
  35. 1.092
  36. 26.97
  37. 1.215
  38. 0.918
  39. 6.72
  40. 2.403

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