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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 523 · 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. 1.9.7 × 3.4 =
  2. 2.0.04 × 2.7 =
  3. 3.7.9 × 0.35 =
  4. 4.0.35 × 3.6 =
  5. 5.5.5 × 2.1 =
  6. 6.1.1 × 0.4 =
  7. 7.0.3 × 0.02 =
  8. 8.0.22 × 0.3 =
  9. 9.0.97 × 0.6 =
  10. 10.0.09 × 1.9 =
  11. 11.0.56 × 2.4 =
  12. 12.4.5 × 0.02 =
  13. 13.0.78 × 1.5 =
  14. 14.8.1 × 0.03 =
  15. 15.0.5 × 3.4 =
  16. 16.6.2 × 2.7 =
  17. 17.1.6 × 0.04 =
  18. 18.5.1 × 0.11 =
  19. 19.3.1 × 0.28 =
  20. 20.0.7 × 0.7 =
  21. 21.3.1 × 2.3 =
  22. 22.0.37 × 2.1 =
  23. 23.0.39 × 3.6 =
  24. 24.4.8 × 0.5 =
  25. 25.0.67 × 1.4 =
  26. 26.8.6 × 0.21 =
  27. 27.1.4 × 0.05 =
  28. 28.4.1 × 3.3 =
  29. 29.0.59 × 3.3 =
  30. 30.2.8 × 0.5 =
  31. 31.1.6 × 0.29 =
  32. 32.0.95 × 3.3 =
  33. 33.3.6 × 0.2 =
  34. 34.6.7 × 0.21 =
  35. 35.0.92 × 2.3 =
  36. 36.0.83 × 3.2 =
  37. 37.0.59 × 1.8 =
  38. 38.0.86 × 0.6 =
  39. 39.0.21 × 1.8 =
  40. 40.0.41 × 3.2 =

Answer key

  1. 32.98
  2. 0.108
  3. 2.765
  4. 1.26
  5. 11.55
  6. 0.44
  7. 0.006
  8. 0.066
  9. 0.582
  10. 0.171
  11. 1.344
  12. 0.09
  13. 1.17
  14. 0.243
  15. 1.7
  16. 16.74
  17. 0.064
  18. 0.561
  19. 0.868
  20. 0.49
  21. 7.13
  22. 0.777
  23. 1.404
  24. 2.4
  25. 0.938
  26. 1.806
  27. 0.07
  28. 13.53
  29. 1.947
  30. 1.4
  31. 0.464
  32. 3.135
  33. 0.72
  34. 1.407
  35. 2.116
  36. 2.656
  37. 1.062
  38. 0.516
  39. 0.378
  40. 1.312

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