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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 458 · 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. 1.6.4 × 2.3 =
  2. 2.3.1 × 0.02 =
  3. 3.1.8 × 0.22 =
  4. 4.8.7 × 1.3 =
  5. 5.9.3 × 0.11 =
  6. 6.5.7 × 0.17 =
  7. 7.8.5 × 0.6 =
  8. 8.0.56 × 0.7 =
  9. 9.0.81 × 1.2 =
  10. 10.2.5 × 0.8 =
  11. 11.1.1 × 0.37 =
  12. 12.2.1 × 3.4 =
  13. 13.0.21 × 3.3 =
  14. 14.0.51 × 2.1 =
  15. 15.0.81 × 2.3 =
  16. 16.0.86 × 2.6 =
  17. 17.0.25 × 1.1 =
  18. 18.0.93 × 3.3 =
  19. 19.0.51 × 1.2 =
  20. 20.0.99 × 2.5 =
  21. 21.0.26 × 0.3 =
  22. 22.8.2 × 0.32 =
  23. 23.0.18 × 2.4 =
  24. 24.0.68 × 2.1 =
  25. 25.0.57 × 1.4 =
  26. 26.1.9 × 3.5 =
  27. 27.3.1 × 0.31 =
  28. 28.0.86 × 0.6 =
  29. 29.0.13 × 1.9 =
  30. 30.0.31 × 1.1 =
  31. 31.0.6 × 0.05 =
  32. 32.0.39 × 0.9 =
  33. 33.7.5 × 0.36 =
  34. 34.0.94 × 1.8 =
  35. 35.0.26 × 3.3 =
  36. 36.2.2 × 1.1 =
  37. 37.0.65 × 0.6 =
  38. 38.0.46 × 1.1 =
  39. 39.0.41 × 3.1 =
  40. 40.3.7 × 1.7 =

Answer key

  1. 14.72
  2. 0.062
  3. 0.396
  4. 11.31
  5. 1.023
  6. 0.969
  7. 5.1
  8. 0.392
  9. 0.972
  10. 2
  11. 0.407
  12. 7.14
  13. 0.693
  14. 1.071
  15. 1.863
  16. 2.236
  17. 0.275
  18. 3.069
  19. 0.612
  20. 2.475
  21. 0.078
  22. 2.624
  23. 0.432
  24. 1.428
  25. 0.798
  26. 6.65
  27. 0.961
  28. 0.516
  29. 0.247
  30. 0.341
  31. 0.03
  32. 0.351
  33. 2.7
  34. 1.692
  35. 0.858
  36. 2.42
  37. 0.39
  38. 0.506
  39. 1.271
  40. 6.29

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