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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 675 · 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. 1.0.97 × 1.5 =
  2. 2.0.69 × 0.2 =
  3. 3.0.37 × 3.1 =
  4. 4.0.39 × 2.5 =
  5. 5.0.43 × 1.1 =
  6. 6.3.7 × 3.4 =
  7. 7.0.66 × 0.4 =
  8. 8.1.1 × 0.16 =
  9. 9.0.91 × 1.1 =
  10. 10.7.6 × 0.2 =
  11. 11.0.35 × 3.4 =
  12. 12.0.61 × 2.4 =
  13. 13.1.7 × 0.35 =
  14. 14.0.24 × 2.9 =
  15. 15.4.8 × 0.26 =
  16. 16.0.74 × 1.1 =
  17. 17.0.29 × 1.3 =
  18. 18.0.71 × 1.1 =
  19. 19.4.1 × 1.1 =
  20. 20.0.3 × 0.31 =
  21. 21.0.19 × 1.8 =
  22. 22.4.5 × 0.21 =
  23. 23.0.54 × 1.1 =
  24. 24.5.1 × 0.3 =
  25. 25.6.9 × 2.1 =
  26. 26.0.23 × 2.6 =
  27. 27.6.4 × 1.1 =
  28. 28.0.37 × 0.3 =
  29. 29.8.2 × 0.11 =
  30. 30.0.21 × 2.9 =
  31. 31.0.77 × 1.8 =
  32. 32.0.38 × 1.4 =
  33. 33.4.2 × 0.35 =
  34. 34.0.35 × 1.9 =
  35. 35.8.2 × 0.37 =
  36. 36.0.76 × 0.9 =
  37. 37.9.2 × 3.8 =
  38. 38.0.29 × 0.7 =
  39. 39.3.1 × 2.7 =
  40. 40.5.2 × 1.3 =

Answer key

  1. 1.455
  2. 0.138
  3. 1.147
  4. 0.975
  5. 0.473
  6. 12.58
  7. 0.264
  8. 0.176
  9. 1.001
  10. 1.52
  11. 1.19
  12. 1.464
  13. 0.595
  14. 0.696
  15. 1.248
  16. 0.814
  17. 0.377
  18. 0.781
  19. 4.51
  20. 0.093
  21. 0.342
  22. 0.945
  23. 0.594
  24. 1.53
  25. 14.49
  26. 0.598
  27. 7.04
  28. 0.111
  29. 0.902
  30. 0.609
  31. 1.386
  32. 0.532
  33. 1.47
  34. 0.665
  35. 3.034
  36. 0.684
  37. 34.96
  38. 0.203
  39. 8.37
  40. 6.76

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