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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 225 · 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. 1.0.12 × 3.9 =
  2. 2.0.68 × 3.1 =
  3. 3.9.3 × 3.6 =
  4. 4.8.2 × 0.23 =
  5. 5.4.7 × 3.7 =
  6. 6.0.53 × 2.5 =
  7. 7.6.9 × 0.36 =
  8. 8.2.5 × 1.1 =
  9. 9.0.05 × 1.1 =
  10. 10.0.8 × 2.2 =
  11. 11.0.62 × 0.8 =
  12. 12.1.8 × 0.11 =
  13. 13.5.1 × 3.4 =
  14. 14.0.62 × 0.2 =
  15. 15.6.6 × 1.8 =
  16. 16.0.41 × 3.8 =
  17. 17.6.9 × 1.7 =
  18. 18.5.9 × 3.6 =
  19. 19.9.7 × 0.06 =
  20. 20.5.2 × 2.4 =
  21. 21.0.62 × 1.3 =
  22. 22.4.2 × 2.6 =
  23. 23.5.4 × 2.6 =
  24. 24.9.5 × 0.4 =
  25. 25.2.6 × 0.25 =
  26. 26.1.3 × 3.7 =
  27. 27.2.1 × 3.5 =
  28. 28.0.95 × 3.9 =
  29. 29.8.6 × 0.3 =
  30. 30.1.6 × 0.21 =
  31. 31.0.6 × 1.1 =
  32. 32.0.77 × 0.7 =
  33. 33.6.4 × 0.6 =
  34. 34.0.45 × 2.1 =
  35. 35.0.28 × 0.5 =
  36. 36.8.2 × 2.1 =
  37. 37.2.6 × 0.14 =
  38. 38.5.8 × 0.31 =
  39. 39.5.9 × 3.5 =
  40. 40.0.56 × 1.7 =

Answer key

  1. 0.468
  2. 2.108
  3. 33.48
  4. 1.886
  5. 17.39
  6. 1.325
  7. 2.484
  8. 2.75
  9. 0.055
  10. 1.76
  11. 0.496
  12. 0.198
  13. 17.34
  14. 0.124
  15. 11.88
  16. 1.558
  17. 11.73
  18. 21.24
  19. 0.582
  20. 12.48
  21. 0.806
  22. 10.92
  23. 14.04
  24. 3.8
  25. 0.65
  26. 4.81
  27. 7.35
  28. 3.705
  29. 2.58
  30. 0.336
  31. 0.66
  32. 0.539
  33. 3.84
  34. 0.945
  35. 0.14
  36. 17.22
  37. 0.364
  38. 1.798
  39. 20.65
  40. 0.952

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