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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 157 · 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. 1.5.8 × 0.04 =
  2. 2.7.8 × 0.19 =
  3. 3.8.2 × 0.34 =
  4. 4.0.25 × 1.7 =
  5. 5.0.91 × 2.4 =
  6. 6.1.1 × 0.31 =
  7. 7.2.9 × 0.39 =
  8. 8.4.3 × 0.5 =
  9. 9.8.1 × 2.4 =
  10. 10.1.8 × 3.6 =
  11. 11.0.66 × 1.1 =
  12. 12.5.2 × 0.38 =
  13. 13.6.8 × 0.04 =
  14. 14.0.97 × 3.2 =
  15. 15.9.1 × 0.02 =
  16. 16.0.08 × 3.5 =
  17. 17.0.55 × 2.1 =
  18. 18.0.4 × 1.5 =
  19. 19.0.99 × 2.5 =
  20. 20.8.1 × 1.7 =
  21. 21.2.5 × 3.1 =
  22. 22.2.9 × 2.8 =
  23. 23.2.9 × 0.08 =
  24. 24.0.41 × 0.2 =
  25. 25.1.1 × 0.07 =
  26. 26.0.85 × 1.7 =
  27. 27.0.68 × 1.3 =
  28. 28.9.7 × 0.26 =
  29. 29.0.67 × 3.2 =
  30. 30.0.71 × 0.6 =
  31. 31.0.28 × 3.1 =
  32. 32.5.4 × 0.32 =
  33. 33.0.32 × 1.8 =
  34. 34.0.05 × 3.1 =
  35. 35.0.49 × 1.9 =
  36. 36.9.3 × 0.9 =
  37. 37.0.98 × 1.9 =
  38. 38.0.05 × 0.4 =
  39. 39.3.8 × 3.5 =
  40. 40.8.1 × 0.11 =

Answer key

  1. 0.232
  2. 1.482
  3. 2.788
  4. 0.425
  5. 2.184
  6. 0.341
  7. 1.131
  8. 2.15
  9. 19.44
  10. 6.48
  11. 0.726
  12. 1.976
  13. 0.272
  14. 3.104
  15. 0.182
  16. 0.28
  17. 1.155
  18. 0.6
  19. 2.475
  20. 13.77
  21. 7.75
  22. 8.12
  23. 0.232
  24. 0.082
  25. 0.077
  26. 1.445
  27. 0.884
  28. 2.522
  29. 2.144
  30. 0.426
  31. 0.868
  32. 1.728
  33. 0.576
  34. 0.155
  35. 0.931
  36. 8.37
  37. 1.862
  38. 0.02
  39. 13.3
  40. 0.891

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