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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 664 · 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. 1.1.4 × 0.21 =
  2. 2.0.85 × 0.6 =
  3. 3.9.1 × 0.21 =
  4. 4.8.7 × 3.8 =
  5. 5.8.1 × 0.6 =
  6. 6.0.81 × 2.7 =
  7. 7.4.1 × 0.06 =
  8. 8.6.7 × 1.8 =
  9. 9.0.51 × 3.9 =
  10. 10.9.8 × 1.6 =
  11. 11.0.91 × 1.6 =
  12. 12.3.8 × 1.2 =
  13. 13.6.8 × 0.19 =
  14. 14.0.56 × 3.7 =
  15. 15.0.29 × 0.6 =
  16. 16.0.26 × 2.5 =
  17. 17.0.75 × 2.1 =
  18. 18.2.4 × 3.1 =
  19. 19.1.1 × 2.1 =
  20. 20.0.44 × 2.7 =
  21. 21.0.4 × 1.1 =
  22. 22.3.6 × 2.6 =
  23. 23.0.82 × 3.7 =
  24. 24.6.5 × 3.1 =
  25. 25.3.9 × 0.5 =
  26. 26.6.4 × 2.1 =
  27. 27.0.9 × 0.12 =
  28. 28.0.93 × 3.7 =
  29. 29.0.98 × 1.1 =
  30. 30.0.99 × 1.1 =
  31. 31.0.21 × 1.6 =
  32. 32.3.1 × 0.11 =
  33. 33.4.4 × 0.9 =
  34. 34.0.56 × 0.4 =
  35. 35.1.8 × 0.36 =
  36. 36.3.5 × 0.09 =
  37. 37.0.78 × 3.3 =
  38. 38.0.07 × 1.2 =
  39. 39.0.8 × 0.26 =
  40. 40.6.8 × 1.1 =

Answer key

  1. 0.294
  2. 0.51
  3. 1.911
  4. 33.06
  5. 4.86
  6. 2.187
  7. 0.246
  8. 12.06
  9. 1.989
  10. 15.68
  11. 1.456
  12. 4.56
  13. 1.292
  14. 2.072
  15. 0.174
  16. 0.65
  17. 1.575
  18. 7.44
  19. 2.31
  20. 1.188
  21. 0.44
  22. 9.36
  23. 3.034
  24. 20.15
  25. 1.95
  26. 13.44
  27. 0.108
  28. 3.441
  29. 1.078
  30. 1.089
  31. 0.336
  32. 0.341
  33. 3.96
  34. 0.224
  35. 0.648
  36. 0.315
  37. 2.574
  38. 0.084
  39. 0.208
  40. 7.48

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