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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 206 · 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. 1.2.1 × 2.6 =
  2. 2.0.43 × 2.4 =
  3. 3.3.1 × 2.5 =
  4. 4.0.18 × 3.3 =
  5. 5.5.7 × 2.1 =
  6. 6.9.1 × 3.9 =
  7. 7.0.17 × 0.4 =
  8. 8.2.4 × 0.02 =
  9. 9.4.7 × 3.9 =
  10. 10.9.6 × 1.9 =
  11. 11.0.37 × 3.9 =
  12. 12.7.5 × 0.32 =
  13. 13.2.4 × 0.05 =
  14. 14.3.1 × 0.3 =
  15. 15.0.19 × 1.2 =
  16. 16.3.7 × 0.11 =
  17. 17.0.25 × 0.4 =
  18. 18.9.4 × 1.1 =
  19. 19.0.3 × 1.7 =
  20. 20.0.5 × 1.3 =
  21. 21.5.2 × 0.36 =
  22. 22.4.1 × 0.22 =
  23. 23.1.4 × 0.07 =
  24. 24.3.1 × 0.35 =
  25. 25.8.2 × 0.12 =
  26. 26.0.23 × 3.8 =
  27. 27.1.9 × 3.8 =
  28. 28.0.7 × 0.14 =
  29. 29.0.78 × 2.8 =
  30. 30.0.17 × 0.2 =
  31. 31.6.4 × 1.8 =
  32. 32.5.5 × 0.32 =
  33. 33.0.83 × 2.6 =
  34. 34.0.04 × 1.1 =
  35. 35.0.11 × 3.5 =
  36. 36.0.97 × 1.1 =
  37. 37.0.05 × 2.3 =
  38. 38.0.16 × 3.9 =
  39. 39.7.6 × 3.6 =
  40. 40.5.4 × 0.31 =

Answer key

  1. 5.46
  2. 1.032
  3. 7.75
  4. 0.594
  5. 11.97
  6. 35.49
  7. 0.068
  8. 0.048
  9. 18.33
  10. 18.24
  11. 1.443
  12. 2.4
  13. 0.12
  14. 0.93
  15. 0.228
  16. 0.407
  17. 0.1
  18. 10.34
  19. 0.51
  20. 0.65
  21. 1.872
  22. 0.902
  23. 0.098
  24. 1.085
  25. 0.984
  26. 0.874
  27. 7.22
  28. 0.098
  29. 2.184
  30. 0.034
  31. 11.52
  32. 1.76
  33. 2.158
  34. 0.044
  35. 0.385
  36. 1.067
  37. 0.115
  38. 0.624
  39. 27.36
  40. 1.674

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