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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 648 · 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. 1.1.2 × 0.05 =
  2. 2.0.11 × 2.1 =
  3. 3.0.24 × 2.9 =
  4. 4.0.41 × 2.2 =
  5. 5.1.5 × 0.28 =
  6. 6.6.7 × 0.6 =
  7. 7.4.6 × 0.29 =
  8. 8.0.84 × 2.3 =
  9. 9.0.66 × 3.4 =
  10. 10.0.23 × 2.3 =
  11. 11.0.2 × 0.34 =
  12. 12.0.58 × 0.2 =
  13. 13.9.2 × 0.03 =
  14. 14.0.46 × 1.1 =
  15. 15.0.11 × 1.3 =
  16. 16.0.41 × 1.7 =
  17. 17.6.5 × 1.5 =
  18. 18.5.7 × 2.1 =
  19. 19.0.91 × 0.7 =
  20. 20.0.86 × 3.2 =
  21. 21.0.19 × 1.2 =
  22. 22.0.09 × 2.3 =
  23. 23.4.1 × 0.29 =
  24. 24.5.3 × 0.11 =
  25. 25.1.8 × 0.06 =
  26. 26.5.3 × 2.9 =
  27. 27.0.23 × 0.5 =
  28. 28.9.6 × 0.11 =
  29. 29.3.7 × 0.4 =
  30. 30.0.97 × 2.1 =
  31. 31.2.6 × 0.25 =
  32. 32.2.1 × 0.11 =
  33. 33.0.02 × 1.6 =
  34. 34.4.1 × 3.6 =
  35. 35.3.1 × 3.6 =
  36. 36.8.8 × 0.4 =
  37. 37.0.89 × 1.3 =
  38. 38.7.6 × 0.28 =
  39. 39.0.04 × 1.6 =
  40. 40.0.46 × 2.2 =

Answer key

  1. 0.06
  2. 0.231
  3. 0.696
  4. 0.902
  5. 0.42
  6. 4.02
  7. 1.334
  8. 1.932
  9. 2.244
  10. 0.529
  11. 0.068
  12. 0.116
  13. 0.276
  14. 0.506
  15. 0.143
  16. 0.697
  17. 9.75
  18. 11.97
  19. 0.637
  20. 2.752
  21. 0.228
  22. 0.207
  23. 1.189
  24. 0.583
  25. 0.108
  26. 15.37
  27. 0.115
  28. 1.056
  29. 1.48
  30. 2.037
  31. 0.65
  32. 0.231
  33. 0.032
  34. 14.76
  35. 11.16
  36. 3.52
  37. 1.157
  38. 2.128
  39. 0.064
  40. 1.012

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