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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 723 · 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. 1.0.81 × 1.6 =
  2. 2.0.38 × 3.7 =
  3. 3.2.5 × 1.3 =
  4. 4.1.8 × 3.9 =
  5. 5.1.7 × 3.8 =
  6. 6.0.7 × 0.06 =
  7. 7.4.1 × 2.3 =
  8. 8.0.43 × 3.6 =
  9. 9.6.4 × 0.28 =
  10. 10.0.09 × 3.1 =
  11. 11.4.7 × 0.4 =
  12. 12.1.6 × 0.02 =
  13. 13.0.91 × 1.1 =
  14. 14.9.1 × 3.3 =
  15. 15.0.25 × 3.8 =
  16. 16.6.1 × 2.1 =
  17. 17.0.74 × 0.4 =
  18. 18.9.1 × 0.16 =
  19. 19.0.11 × 3.3 =
  20. 20.7.5 × 0.31 =
  21. 21.0.41 × 2.2 =
  22. 22.0.17 × 0.7 =
  23. 23.0.2 × 0.06 =
  24. 24.1.3 × 0.03 =
  25. 25.0.56 × 0.8 =
  26. 26.0.23 × 2.5 =
  27. 27.1.2 × 3.4 =
  28. 28.0.5 × 0.9 =
  29. 29.4.1 × 0.08 =
  30. 30.2.1 × 3.9 =
  31. 31.0.41 × 3.6 =
  32. 32.0.88 × 2.1 =
  33. 33.0.53 × 3.4 =
  34. 34.7.6 × 0.11 =
  35. 35.0.26 × 0.8 =
  36. 36.6.9 × 3.8 =
  37. 37.1.9 × 0.37 =
  38. 38.0.35 × 0.7 =
  39. 39.9.6 × 0.25 =
  40. 40.3.7 × 1.4 =

Answer key

  1. 1.296
  2. 1.406
  3. 3.25
  4. 7.02
  5. 6.46
  6. 0.042
  7. 9.43
  8. 1.548
  9. 1.792
  10. 0.279
  11. 1.88
  12. 0.032
  13. 1.001
  14. 30.03
  15. 0.95
  16. 12.81
  17. 0.296
  18. 1.456
  19. 0.363
  20. 2.325
  21. 0.902
  22. 0.119
  23. 0.012
  24. 0.039
  25. 0.448
  26. 0.575
  27. 4.08
  28. 0.45
  29. 0.328
  30. 8.19
  31. 1.476
  32. 1.848
  33. 1.802
  34. 0.836
  35. 0.208
  36. 26.22
  37. 0.703
  38. 0.245
  39. 2.4
  40. 5.18

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