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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 500 · 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. 1.0.86 × 2.2 =
  2. 2.2.1 × 3.2 =
  3. 3.6.1 × 2.1 =
  4. 4.0.21 × 0.2 =
  5. 5.0.75 × 3.5 =
  6. 6.0.99 × 2.5 =
  7. 7.0.3 × 0.7 =
  8. 8.7.4 × 0.3 =
  9. 9.1.4 × 2.9 =
  10. 10.0.37 × 1.3 =
  11. 11.6.9 × 0.37 =
  12. 12.2.2 × 3.5 =
  13. 13.9.8 × 0.14 =
  14. 14.7.8 × 0.03 =
  15. 15.0.86 × 1.4 =
  16. 16.0.91 × 1.2 =
  17. 17.0.23 × 3.1 =
  18. 18.9.5 × 0.35 =
  19. 19.0.79 × 0.5 =
  20. 20.0.91 × 3.1 =
  21. 21.2.8 × 0.11 =
  22. 22.0.71 × 0.6 =
  23. 23.2.1 × 0.14 =
  24. 24.0.29 × 0.8 =
  25. 25.6.4 × 0.37 =
  26. 26.0.83 × 0.2 =
  27. 27.7.1 × 0.2 =
  28. 28.0.91 × 0.3 =
  29. 29.0.79 × 0.2 =
  30. 30.5.9 × 0.02 =
  31. 31.0.38 × 2.2 =
  32. 32.0.6 × 1.1 =
  33. 33.9.5 × 0.4 =
  34. 34.2.1 × 0.36 =
  35. 35.0.19 × 0.7 =
  36. 36.0.22 × 1.1 =
  37. 37.0.97 × 1.1 =
  38. 38.0.04 × 2.5 =
  39. 39.0.74 × 2.3 =
  40. 40.0.07 × 1.2 =

Answer key

  1. 1.892
  2. 6.72
  3. 12.81
  4. 0.042
  5. 2.625
  6. 2.475
  7. 0.21
  8. 2.22
  9. 4.06
  10. 0.481
  11. 2.553
  12. 7.7
  13. 1.372
  14. 0.234
  15. 1.204
  16. 1.092
  17. 0.713
  18. 3.325
  19. 0.395
  20. 2.821
  21. 0.308
  22. 0.426
  23. 0.294
  24. 0.232
  25. 2.368
  26. 0.166
  27. 1.42
  28. 0.273
  29. 0.158
  30. 0.118
  31. 0.836
  32. 0.66
  33. 3.8
  34. 0.756
  35. 0.133
  36. 0.242
  37. 1.067
  38. 0.1
  39. 1.702
  40. 0.084

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