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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 221 · 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. 1.0.04 × 3.2 =
  2. 2.0.12 × 3.1 =
  3. 3.6.1 × 0.05 =
  4. 4.6.4 × 0.2 =
  5. 5.0.19 × 3.5 =
  6. 6.0.74 × 3.8 =
  7. 7.4.9 × 0.8 =
  8. 8.0.87 × 2.7 =
  9. 9.8.6 × 0.34 =
  10. 10.0.63 × 3.1 =
  11. 11.6.3 × 1.2 =
  12. 12.0.28 × 3.6 =
  13. 13.2.6 × 3.2 =
  14. 14.1.7 × 3.6 =
  15. 15.0.04 × 1.5 =
  16. 16.0.04 × 2.1 =
  17. 17.0.78 × 3.8 =
  18. 18.4.9 × 2.1 =
  19. 19.7.6 × 0.29 =
  20. 20.5.8 × 0.7 =
  21. 21.7.9 × 0.39 =
  22. 22.0.83 × 0.8 =
  23. 23.7.4 × 1.3 =
  24. 24.3.6 × 0.26 =
  25. 25.4.2 × 0.36 =
  26. 26.4.2 × 0.3 =
  27. 27.0.48 × 1.4 =
  28. 28.3.4 × 0.24 =
  29. 29.6.9 × 0.06 =
  30. 30.0.5 × 0.11 =
  31. 31.6.5 × 0.24 =
  32. 32.0.67 × 3.1 =
  33. 33.2.2 × 0.12 =
  34. 34.0.61 × 1.5 =
  35. 35.0.67 × 2.1 =
  36. 36.1.5 × 0.02 =
  37. 37.0.09 × 1.2 =
  38. 38.2.9 × 1.1 =
  39. 39.2.2 × 0.07 =
  40. 40.0.06 × 1.4 =

Answer key

  1. 0.128
  2. 0.372
  3. 0.305
  4. 1.28
  5. 0.665
  6. 2.812
  7. 3.92
  8. 2.349
  9. 2.924
  10. 1.953
  11. 7.56
  12. 1.008
  13. 8.32
  14. 6.12
  15. 0.06
  16. 0.084
  17. 2.964
  18. 10.29
  19. 2.204
  20. 4.06
  21. 3.081
  22. 0.664
  23. 9.62
  24. 0.936
  25. 1.512
  26. 1.26
  27. 0.672
  28. 0.816
  29. 0.414
  30. 0.055
  31. 1.56
  32. 2.077
  33. 0.264
  34. 0.915
  35. 1.407
  36. 0.03
  37. 0.108
  38. 3.19
  39. 0.154
  40. 0.084

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