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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 518 · 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. 1.0.55 × 0.6 =
  2. 2.1.6 × 0.03 =
  3. 3.0.88 × 2.7 =
  4. 4.2.4 × 2.1 =
  5. 5.7.6 × 0.3 =
  6. 6.0.42 × 3.3 =
  7. 7.7.3 × 0.31 =
  8. 8.0.11 × 2.2 =
  9. 9.4.9 × 0.33 =
  10. 10.0.07 × 0.4 =
  11. 11.0.18 × 0.7 =
  12. 12.8.1 × 3.1 =
  13. 13.5.1 × 0.18 =
  14. 14.7.9 × 2.5 =
  15. 15.0.15 × 2.1 =
  16. 16.0.9 × 0.11 =
  17. 17.0.98 × 0.9 =
  18. 18.3.1 × 2.6 =
  19. 19.0.89 × 2.3 =
  20. 20.0.97 × 1.4 =
  21. 21.0.81 × 3.5 =
  22. 22.2.1 × 1.1 =
  23. 23.0.09 × 3.4 =
  24. 24.0.19 × 1.3 =
  25. 25.0.18 × 2.6 =
  26. 26.0.79 × 2.8 =
  27. 27.1.9 × 3.1 =
  28. 28.0.07 × 2.6 =
  29. 29.0.47 × 3.8 =
  30. 30.3.3 × 2.9 =
  31. 31.7.6 × 1.1 =
  32. 32.0.45 × 1.8 =
  33. 33.6.1 × 3.6 =
  34. 34.0.15 × 3.7 =
  35. 35.1.5 × 1.1 =
  36. 36.1.7 × 0.39 =
  37. 37.0.21 × 0.5 =
  38. 38.0.95 × 2.3 =
  39. 39.0.43 × 2.5 =
  40. 40.1.7 × 3.1 =

Answer key

  1. 0.33
  2. 0.048
  3. 2.376
  4. 5.04
  5. 2.28
  6. 1.386
  7. 2.263
  8. 0.242
  9. 1.617
  10. 0.028
  11. 0.126
  12. 25.11
  13. 0.918
  14. 19.75
  15. 0.315
  16. 0.099
  17. 0.882
  18. 8.06
  19. 2.047
  20. 1.358
  21. 2.835
  22. 2.31
  23. 0.306
  24. 0.247
  25. 0.468
  26. 2.212
  27. 5.89
  28. 0.182
  29. 1.786
  30. 9.57
  31. 8.36
  32. 0.81
  33. 21.96
  34. 0.555
  35. 1.65
  36. 0.663
  37. 0.105
  38. 2.185
  39. 1.075
  40. 5.27

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