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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 645 · 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. 1.6.8 × 0.24 =
  2. 2.5.5 × 3.9 =
  3. 3.0.37 × 0.9 =
  4. 4.5.9 × 2.9 =
  5. 5.1.2 × 0.19 =
  6. 6.0.82 × 2.4 =
  7. 7.0.19 × 2.3 =
  8. 8.8.1 × 0.19 =
  9. 9.0.55 × 2.1 =
  10. 10.0.73 × 3.4 =
  11. 11.0.78 × 1.1 =
  12. 12.6.9 × 2.6 =
  13. 13.5.6 × 0.39 =
  14. 14.3.3 × 0.8 =
  15. 15.1.1 × 0.27 =
  16. 16.1.4 × 0.26 =
  17. 17.0.05 × 2.9 =
  18. 18.6.7 × 0.04 =
  19. 19.0.59 × 0.7 =
  20. 20.0.67 × 0.2 =
  21. 21.0.67 × 1.4 =
  22. 22.1.1 × 0.33 =
  23. 23.0.27 × 2.1 =
  24. 24.0.89 × 1.7 =
  25. 25.0.11 × 2.2 =
  26. 26.8.9 × 2.1 =
  27. 27.5.2 × 0.24 =
  28. 28.0.5 × 0.9 =
  29. 29.4.5 × 1.1 =
  30. 30.0.46 × 0.8 =
  31. 31.0.11 × 0.3 =
  32. 32.0.69 × 1.1 =
  33. 33.8.5 × 2.4 =
  34. 34.0.48 × 1.1 =
  35. 35.0.25 × 2.9 =
  36. 36.0.65 × 3.9 =
  37. 37.0.49 × 1.9 =
  38. 38.0.25 × 2.1 =
  39. 39.1.2 × 1.1 =
  40. 40.4.7 × 0.4 =

Answer key

  1. 1.632
  2. 21.45
  3. 0.333
  4. 17.11
  5. 0.228
  6. 1.968
  7. 0.437
  8. 1.539
  9. 1.155
  10. 2.482
  11. 0.858
  12. 17.94
  13. 2.184
  14. 2.64
  15. 0.297
  16. 0.364
  17. 0.145
  18. 0.268
  19. 0.413
  20. 0.134
  21. 0.938
  22. 0.363
  23. 0.567
  24. 1.513
  25. 0.242
  26. 18.69
  27. 1.248
  28. 0.45
  29. 4.95
  30. 0.368
  31. 0.033
  32. 0.759
  33. 20.4
  34. 0.528
  35. 0.725
  36. 2.535
  37. 0.931
  38. 0.525
  39. 1.32
  40. 1.88

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