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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 55 · 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. 1.0.05 × 2.1 =
  2. 2.2.1 × 1.1 =
  3. 3.6.1 × 1.9 =
  4. 4.8.1 × 0.3 =
  5. 5.6.2 × 1.9 =
  6. 6.0.55 × 2.7 =
  7. 7.1.4 × 0.05 =
  8. 8.0.03 × 3.2 =
  9. 9.4.1 × 0.26 =
  10. 10.1.3 × 0.14 =
  11. 11.5.7 × 0.3 =
  12. 12.1.4 × 0.19 =
  13. 13.0.48 × 3.8 =
  14. 14.0.39 × 0.8 =
  15. 15.7.3 × 0.25 =
  16. 16.5.5 × 0.04 =
  17. 17.2.9 × 3.3 =
  18. 18.0.17 × 2.1 =
  19. 19.0.9 × 0.11 =
  20. 20.0.6 × 1.5 =
  21. 21.1.1 × 0.36 =
  22. 22.0.72 × 0.7 =
  23. 23.1.7 × 0.21 =
  24. 24.0.3 × 0.08 =
  25. 25.1.3 × 0.38 =
  26. 26.5.5 × 0.17 =
  27. 27.5.3 × 0.2 =
  28. 28.6.4 × 0.4 =
  29. 29.6.5 × 0.09 =
  30. 30.2.5 × 0.15 =
  31. 31.9.3 × 0.32 =
  32. 32.0.63 × 3.8 =
  33. 33.7.2 × 0.39 =
  34. 34.0.84 × 0.7 =
  35. 35.0.81 × 3.2 =
  36. 36.0.57 × 1.9 =
  37. 37.7.6 × 0.5 =
  38. 38.0.4 × 3.4 =
  39. 39.0.54 × 1.4 =
  40. 40.0.79 × 3.5 =

Answer key

  1. 0.105
  2. 2.31
  3. 11.59
  4. 2.43
  5. 11.78
  6. 1.485
  7. 0.07
  8. 0.096
  9. 1.066
  10. 0.182
  11. 1.71
  12. 0.266
  13. 1.824
  14. 0.312
  15. 1.825
  16. 0.22
  17. 9.57
  18. 0.357
  19. 0.099
  20. 0.9
  21. 0.396
  22. 0.504
  23. 0.357
  24. 0.024
  25. 0.494
  26. 0.935
  27. 1.06
  28. 2.56
  29. 0.585
  30. 0.375
  31. 2.976
  32. 2.394
  33. 2.808
  34. 0.588
  35. 2.592
  36. 1.083
  37. 3.8
  38. 1.36
  39. 0.756
  40. 2.765

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