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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 683 · 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. 1.0.4 × 0.34 =
  2. 2.0.2 × 0.19 =
  3. 3.0.46 × 0.9 =
  4. 4.0.89 × 1.5 =
  5. 5.0.75 × 2.4 =
  6. 6.0.24 × 2.3 =
  7. 7.3.8 × 0.02 =
  8. 8.0.3 × 2.1 =
  9. 9.5.1 × 0.03 =
  10. 10.9.9 × 0.05 =
  11. 11.0.81 × 0.6 =
  12. 12.0.04 × 1.9 =
  13. 13.9.3 × 3.8 =
  14. 14.1.6 × 0.21 =
  15. 15.5.2 × 0.39 =
  16. 16.8.1 × 2.1 =
  17. 17.1.9 × 0.11 =
  18. 18.0.29 × 2.7 =
  19. 19.0.08 × 0.4 =
  20. 20.2.5 × 2.1 =
  21. 21.0.7 × 0.12 =
  22. 22.7.3 × 3.8 =
  23. 23.0.81 × 3.8 =
  24. 24.0.41 × 1.2 =
  25. 25.0.5 × 1.4 =
  26. 26.0.44 × 3.8 =
  27. 27.0.05 × 3.1 =
  28. 28.4.1 × 0.21 =
  29. 29.0.2 × 2.7 =
  30. 30.0.51 × 3.6 =
  31. 31.7.9 × 3.5 =
  32. 32.3.4 × 3.9 =
  33. 33.0.21 × 0.4 =
  34. 34.0.86 × 0.4 =
  35. 35.3.3 × 2.5 =
  36. 36.9.8 × 0.3 =
  37. 37.7.7 × 0.25 =
  38. 38.0.87 × 0.2 =
  39. 39.0.82 × 1.5 =
  40. 40.0.22 × 3.5 =

Answer key

  1. 0.136
  2. 0.038
  3. 0.414
  4. 1.335
  5. 1.8
  6. 0.552
  7. 0.076
  8. 0.63
  9. 0.153
  10. 0.495
  11. 0.486
  12. 0.076
  13. 35.34
  14. 0.336
  15. 2.028
  16. 17.01
  17. 0.209
  18. 0.783
  19. 0.032
  20. 5.25
  21. 0.084
  22. 27.74
  23. 3.078
  24. 0.492
  25. 0.7
  26. 1.672
  27. 0.155
  28. 0.861
  29. 0.54
  30. 1.836
  31. 27.65
  32. 13.26
  33. 0.084
  34. 0.344
  35. 8.25
  36. 2.94
  37. 1.925
  38. 0.174
  39. 1.23
  40. 0.77

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