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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 388 · 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. 1.0.4 × 3.4 =
  2. 2.0.92 × 0.7 =
  3. 3.0.58 × 3.2 =
  4. 4.0.52 × 2.1 =
  5. 5.8.6 × 0.8 =
  6. 6.0.25 × 3.4 =
  7. 7.4.1 × 2.9 =
  8. 8.7.7 × 0.5 =
  9. 9.0.97 × 0.8 =
  10. 10.4.8 × 2.7 =
  11. 11.3.8 × 2.4 =
  12. 12.0.81 × 2.2 =
  13. 13.0.75 × 1.2 =
  14. 14.0.24 × 1.1 =
  15. 15.0.14 × 3.5 =
  16. 16.0.12 × 1.6 =
  17. 17.0.47 × 0.2 =
  18. 18.0.92 × 2.2 =
  19. 19.7.9 × 0.4 =
  20. 20.1.2 × 0.29 =
  21. 21.5.9 × 2.2 =
  22. 22.1.2 × 0.06 =
  23. 23.8.4 × 0.26 =
  24. 24.0.84 × 0.8 =
  25. 25.5.5 × 2.2 =
  26. 26.0.05 × 2.6 =
  27. 27.0.24 × 2.4 =
  28. 28.5.3 × 0.24 =
  29. 29.0.93 × 0.5 =
  30. 30.0.77 × 1.8 =
  31. 31.0.86 × 3.2 =
  32. 32.1.4 × 1.4 =
  33. 33.0.4 × 0.34 =
  34. 34.0.73 × 2.2 =
  35. 35.4.6 × 0.16 =
  36. 36.0.91 × 2.9 =
  37. 37.2.3 × 0.11 =
  38. 38.0.53 × 1.8 =
  39. 39.0.41 × 1.5 =
  40. 40.9.7 × 1.5 =

Answer key

  1. 1.36
  2. 0.644
  3. 1.856
  4. 1.092
  5. 6.88
  6. 0.85
  7. 11.89
  8. 3.85
  9. 0.776
  10. 12.96
  11. 9.12
  12. 1.782
  13. 0.9
  14. 0.264
  15. 0.49
  16. 0.192
  17. 0.094
  18. 2.024
  19. 3.16
  20. 0.348
  21. 12.98
  22. 0.072
  23. 2.184
  24. 0.672
  25. 12.1
  26. 0.13
  27. 0.576
  28. 1.272
  29. 0.465
  30. 1.386
  31. 2.752
  32. 1.96
  33. 0.136
  34. 1.606
  35. 0.736
  36. 2.639
  37. 0.253
  38. 0.954
  39. 0.615
  40. 14.55

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