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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 437 · 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. 1.0.31 × 2.3 =
  2. 2.0.6 × 2.8 =
  3. 3.0.07 × 2.2 =
  4. 4.2.6 × 2.8 =
  5. 5.0.76 × 2.5 =
  6. 6.1.5 × 0.15 =
  7. 7.0.29 × 0.3 =
  8. 8.0.3 × 2.4 =
  9. 9.0.76 × 1.1 =
  10. 10.3.6 × 2.5 =
  11. 11.0.97 × 0.2 =
  12. 12.0.96 × 2.4 =
  13. 13.9.5 × 2.2 =
  14. 14.6.8 × 3.8 =
  15. 15.0.02 × 3.7 =
  16. 16.7.7 × 3.1 =
  17. 17.0.6 × 1.6 =
  18. 18.8.1 × 3.5 =
  19. 19.0.91 × 2.1 =
  20. 20.0.32 × 0.3 =
  21. 21.9.9 × 0.21 =
  22. 22.1.2 × 2.8 =
  23. 23.9.6 × 0.8 =
  24. 24.1.5 × 0.31 =
  25. 25.1.2 × 0.35 =
  26. 26.1.6 × 2.4 =
  27. 27.7.7 × 0.03 =
  28. 28.0.73 × 1.2 =
  29. 29.5.9 × 0.8 =
  30. 30.0.59 × 1.1 =
  31. 31.0.37 × 1.6 =
  32. 32.0.53 × 2.9 =
  33. 33.3.1 × 1.6 =
  34. 34.8.3 × 0.06 =
  35. 35.1.2 × 0.25 =
  36. 36.3.9 × 0.07 =
  37. 37.0.31 × 0.5 =
  38. 38.0.66 × 0.8 =
  39. 39.0.24 × 3.3 =
  40. 40.0.38 × 1.2 =

Answer key

  1. 0.713
  2. 1.68
  3. 0.154
  4. 7.28
  5. 1.9
  6. 0.225
  7. 0.087
  8. 0.72
  9. 0.836
  10. 9
  11. 0.194
  12. 2.304
  13. 20.9
  14. 25.84
  15. 0.074
  16. 23.87
  17. 0.96
  18. 28.35
  19. 1.911
  20. 0.096
  21. 2.079
  22. 3.36
  23. 7.68
  24. 0.465
  25. 0.42
  26. 3.84
  27. 0.231
  28. 0.876
  29. 4.72
  30. 0.649
  31. 0.592
  32. 1.537
  33. 4.96
  34. 0.498
  35. 0.3
  36. 0.273
  37. 0.155
  38. 0.528
  39. 0.792
  40. 0.456

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