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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 384 · 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. 1.1.9 × 1.8 =
  2. 2.3.1 × 2.1 =
  3. 3.0.37 × 2.1 =
  4. 4.3.5 × 1.6 =
  5. 5.9.3 × 1.9 =
  6. 6.9.6 × 1.9 =
  7. 7.0.92 × 2.7 =
  8. 8.1.1 × 0.37 =
  9. 9.9.1 × 3.5 =
  10. 10.7.1 × 0.7 =
  11. 11.7.7 × 1.4 =
  12. 12.2.4 × 1.6 =
  13. 13.3.3 × 1.2 =
  14. 14.0.64 × 1.1 =
  15. 15.1.5 × 0.32 =
  16. 16.0.41 × 1.5 =
  17. 17.0.54 × 2.7 =
  18. 18.0.78 × 0.9 =
  19. 19.6.8 × 0.9 =
  20. 20.1.6 × 0.9 =
  21. 21.0.02 × 0.8 =
  22. 22.5.1 × 0.11 =
  23. 23.0.2 × 0.26 =
  24. 24.0.18 × 2.3 =
  25. 25.1.4 × 0.05 =
  26. 26.6.8 × 0.38 =
  27. 27.0.29 × 3.6 =
  28. 28.0.6 × 2.8 =
  29. 29.1.4 × 0.6 =
  30. 30.0.63 × 2.1 =
  31. 31.4.6 × 0.36 =
  32. 32.0.94 × 2.1 =
  33. 33.0.34 × 2.9 =
  34. 34.0.71 × 2.3 =
  35. 35.0.07 × 0.7 =
  36. 36.8.4 × 0.02 =
  37. 37.0.95 × 3.5 =
  38. 38.0.8 × 0.39 =
  39. 39.0.31 × 1.1 =
  40. 40.0.65 × 3.4 =

Answer key

  1. 3.42
  2. 6.51
  3. 0.777
  4. 5.6
  5. 17.67
  6. 18.24
  7. 2.484
  8. 0.407
  9. 31.85
  10. 4.97
  11. 10.78
  12. 3.84
  13. 3.96
  14. 0.704
  15. 0.48
  16. 0.615
  17. 1.458
  18. 0.702
  19. 6.12
  20. 1.44
  21. 0.016
  22. 0.561
  23. 0.052
  24. 0.414
  25. 0.07
  26. 2.584
  27. 1.044
  28. 1.68
  29. 0.84
  30. 1.323
  31. 1.656
  32. 1.974
  33. 0.986
  34. 1.633
  35. 0.049
  36. 0.168
  37. 3.325
  38. 0.312
  39. 0.341
  40. 2.21

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