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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 771 · 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. 1.6.7 × 0.8 =
  2. 2.2.1 × 0.07 =
  3. 3.3.6 × 0.08 =
  4. 4.7.7 × 1.1 =
  5. 5.0.03 × 2.9 =
  6. 6.9.5 × 3.9 =
  7. 7.0.25 × 3.5 =
  8. 8.1.1 × 1.5 =
  9. 9.5.5 × 3.2 =
  10. 10.6.9 × 2.8 =
  11. 11.0.27 × 1.1 =
  12. 12.7.4 × 2.8 =
  13. 13.6.4 × 3.7 =
  14. 14.1.7 × 0.8 =
  15. 15.0.59 × 0.8 =
  16. 16.9.2 × 0.04 =
  17. 17.0.6 × 0.06 =
  18. 18.1.8 × 0.09 =
  19. 19.0.51 × 0.5 =
  20. 20.3.5 × 0.03 =
  21. 21.0.46 × 1.2 =
  22. 22.5.1 × 0.21 =
  23. 23.7.9 × 0.33 =
  24. 24.5.1 × 0.33 =
  25. 25.7.2 × 1.5 =
  26. 26.2.1 × 0.27 =
  27. 27.7.5 × 1.4 =
  28. 28.0.49 × 1.2 =
  29. 29.0.21 × 1.1 =
  30. 30.7.1 × 0.18 =
  31. 31.0.36 × 2.2 =
  32. 32.0.26 × 0.8 =
  33. 33.0.03 × 1.1 =
  34. 34.0.62 × 3.1 =
  35. 35.7.6 × 0.32 =
  36. 36.0.41 × 1.2 =
  37. 37.0.82 × 3.4 =
  38. 38.6.8 × 0.22 =
  39. 39.3.7 × 0.17 =
  40. 40.3.4 × 0.7 =

Answer key

  1. 5.36
  2. 0.147
  3. 0.288
  4. 8.47
  5. 0.087
  6. 37.05
  7. 0.875
  8. 1.65
  9. 17.6
  10. 19.32
  11. 0.297
  12. 20.72
  13. 23.68
  14. 1.36
  15. 0.472
  16. 0.368
  17. 0.036
  18. 0.162
  19. 0.255
  20. 0.105
  21. 0.552
  22. 1.071
  23. 2.607
  24. 1.683
  25. 10.8
  26. 0.567
  27. 10.5
  28. 0.588
  29. 0.231
  30. 1.278
  31. 0.792
  32. 0.208
  33. 0.033
  34. 1.922
  35. 2.432
  36. 0.492
  37. 2.788
  38. 1.496
  39. 0.629
  40. 2.38

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