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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 361 · 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. 1.0.9 × 0.05 =
  2. 2.0.56 × 3.6 =
  3. 3.7.9 × 0.29 =
  4. 4.0.27 × 0.9 =
  5. 5.0.65 × 1.8 =
  6. 6.3.3 × 0.13 =
  7. 7.0.16 × 2.9 =
  8. 8.6.3 × 0.11 =
  9. 9.0.77 × 2.1 =
  10. 10.0.98 × 1.6 =
  11. 11.0.63 × 0.3 =
  12. 12.8.8 × 1.5 =
  13. 13.0.11 × 1.8 =
  14. 14.0.8 × 0.3 =
  15. 15.9.1 × 0.26 =
  16. 16.0.32 × 1.1 =
  17. 17.0.51 × 0.2 =
  18. 18.0.82 × 2.1 =
  19. 19.0.05 × 1.6 =
  20. 20.0.88 × 2.1 =
  21. 21.3.4 × 3.1 =
  22. 22.1.1 × 0.15 =
  23. 23.0.74 × 2.1 =
  24. 24.3.4 × 0.39 =
  25. 25.0.4 × 0.24 =
  26. 26.0.25 × 1.7 =
  27. 27.4.8 × 0.07 =
  28. 28.0.53 × 3.1 =
  29. 29.3.4 × 0.17 =
  30. 30.0.65 × 0.5 =
  31. 31.0.23 × 0.2 =
  32. 32.0.79 × 2.3 =
  33. 33.7.1 × 3.9 =
  34. 34.0.56 × 2.4 =
  35. 35.0.63 × 0.9 =
  36. 36.0.37 × 3.9 =
  37. 37.4.9 × 2.2 =
  38. 38.0.95 × 1.6 =
  39. 39.0.24 × 1.2 =
  40. 40.0.51 × 1.7 =

Answer key

  1. 0.045
  2. 2.016
  3. 2.291
  4. 0.243
  5. 1.17
  6. 0.429
  7. 0.464
  8. 0.693
  9. 1.617
  10. 1.568
  11. 0.189
  12. 13.2
  13. 0.198
  14. 0.24
  15. 2.366
  16. 0.352
  17. 0.102
  18. 1.722
  19. 0.08
  20. 1.848
  21. 10.54
  22. 0.165
  23. 1.554
  24. 1.326
  25. 0.096
  26. 0.425
  27. 0.336
  28. 1.643
  29. 0.578
  30. 0.325
  31. 0.046
  32. 1.817
  33. 27.69
  34. 1.344
  35. 0.567
  36. 1.443
  37. 10.78
  38. 1.52
  39. 0.288
  40. 0.867

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