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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 541 · 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. 1.0.82 × 1.5 =
  2. 2.0.38 × 2.8 =
  3. 3.0.9 × 3.1 =
  4. 4.1.6 × 0.2 =
  5. 5.0.84 × 1.1 =
  6. 6.6.4 × 0.26 =
  7. 7.0.62 × 0.9 =
  8. 8.0.35 × 2.6 =
  9. 9.1.8 × 0.39 =
  10. 10.0.91 × 2.4 =
  11. 11.0.2 × 2.1 =
  12. 12.0.23 × 0.7 =
  13. 13.4.5 × 2.1 =
  14. 14.3.1 × 0.35 =
  15. 15.2.6 × 3.2 =
  16. 16.0.7 × 0.7 =
  17. 17.6.2 × 0.06 =
  18. 18.5.1 × 0.13 =
  19. 19.5.1 × 0.03 =
  20. 20.2.5 × 1.9 =
  21. 21.8.1 × 3.2 =
  22. 22.4.9 × 0.4 =
  23. 23.0.62 × 0.8 =
  24. 24.0.28 × 3.5 =
  25. 25.0.11 × 2.5 =
  26. 26.5.7 × 0.19 =
  27. 27.1.9 × 0.05 =
  28. 28.2.1 × 0.2 =
  29. 29.9.5 × 0.06 =
  30. 30.3.4 × 2.1 =
  31. 31.8.3 × 0.26 =
  32. 32.0.15 × 0.5 =
  33. 33.3.4 × 0.21 =
  34. 34.0.11 × 3.5 =
  35. 35.9.1 × 1.5 =
  36. 36.0.87 × 0.8 =
  37. 37.0.42 × 0.5 =
  38. 38.0.31 × 1.2 =
  39. 39.0.38 × 0.8 =
  40. 40.5.9 × 3.5 =

Answer key

  1. 1.23
  2. 1.064
  3. 2.79
  4. 0.32
  5. 0.924
  6. 1.664
  7. 0.558
  8. 0.91
  9. 0.702
  10. 2.184
  11. 0.42
  12. 0.161
  13. 9.45
  14. 1.085
  15. 8.32
  16. 0.49
  17. 0.372
  18. 0.663
  19. 0.153
  20. 4.75
  21. 25.92
  22. 1.96
  23. 0.496
  24. 0.98
  25. 0.275
  26. 1.083
  27. 0.095
  28. 0.42
  29. 0.57
  30. 7.14
  31. 2.158
  32. 0.075
  33. 0.714
  34. 0.385
  35. 13.65
  36. 0.696
  37. 0.21
  38. 0.372
  39. 0.304
  40. 20.65

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