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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 447 · 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. 1.6.1 × 0.29 =
  2. 2.1.3 × 0.18 =
  3. 3.0.73 × 2.9 =
  4. 4.0.5 × 0.16 =
  5. 5.0.86 × 2.7 =
  6. 6.5.2 × 0.31 =
  7. 7.0.11 × 2.4 =
  8. 8.0.9 × 0.17 =
  9. 9.1.2 × 0.3 =
  10. 10.3.8 × 0.32 =
  11. 11.8.4 × 0.17 =
  12. 12.6.5 × 0.29 =
  13. 13.0.48 × 3.6 =
  14. 14.0.5 × 0.5 =
  15. 15.9.3 × 0.05 =
  16. 16.0.38 × 3.9 =
  17. 17.0.91 × 2.6 =
  18. 18.2.3 × 1.2 =
  19. 19.0.33 × 3.4 =
  20. 20.0.6 × 0.31 =
  21. 21.0.37 × 1.1 =
  22. 22.0.74 × 1.3 =
  23. 23.0.55 × 1.2 =
  24. 24.0.7 × 0.11 =
  25. 25.2.1 × 0.22 =
  26. 26.9.1 × 0.12 =
  27. 27.0.36 × 0.9 =
  28. 28.6.2 × 0.29 =
  29. 29.5.4 × 0.7 =
  30. 30.0.91 × 1.9 =
  31. 31.0.19 × 0.4 =
  32. 32.7.8 × 2.2 =
  33. 33.3.7 × 0.07 =
  34. 34.0.9 × 2.8 =
  35. 35.0.02 × 2.3 =
  36. 36.0.05 × 3.1 =
  37. 37.0.35 × 1.3 =
  38. 38.2.7 × 1.4 =
  39. 39.0.4 × 0.27 =
  40. 40.0.12 × 1.5 =

Answer key

  1. 1.769
  2. 0.234
  3. 2.117
  4. 0.08
  5. 2.322
  6. 1.612
  7. 0.264
  8. 0.153
  9. 0.36
  10. 1.216
  11. 1.428
  12. 1.885
  13. 1.728
  14. 0.25
  15. 0.465
  16. 1.482
  17. 2.366
  18. 2.76
  19. 1.122
  20. 0.186
  21. 0.407
  22. 0.962
  23. 0.66
  24. 0.077
  25. 0.462
  26. 1.092
  27. 0.324
  28. 1.798
  29. 3.78
  30. 1.729
  31. 0.076
  32. 17.16
  33. 0.259
  34. 2.52
  35. 0.046
  36. 0.155
  37. 0.455
  38. 3.78
  39. 0.108
  40. 0.18

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