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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 516 · 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. 1.0.82 × 3.4 =
  2. 2.0.56 × 2.2 =
  3. 3.2.8 × 0.39 =
  4. 4.0.28 × 1.1 =
  5. 5.0.06 × 0.8 =
  6. 6.0.82 × 0.5 =
  7. 7.0.21 × 1.5 =
  8. 8.4.1 × 0.39 =
  9. 9.0.12 × 3.6 =
  10. 10.6.5 × 0.36 =
  11. 11.0.7 × 0.16 =
  12. 12.9.3 × 0.6 =
  13. 13.0.3 × 2.3 =
  14. 14.0.17 × 1.7 =
  15. 15.0.16 × 1.7 =
  16. 16.9.9 × 3.3 =
  17. 17.0.87 × 1.8 =
  18. 18.7.1 × 0.33 =
  19. 19.0.25 × 1.1 =
  20. 20.0.06 × 2.6 =
  21. 21.4.3 × 0.26 =
  22. 22.0.41 × 1.1 =
  23. 23.0.84 × 0.9 =
  24. 24.0.03 × 0.8 =
  25. 25.1.2 × 0.04 =
  26. 26.0.4 × 2.9 =
  27. 27.9.2 × 1.9 =
  28. 28.0.7 × 1.4 =
  29. 29.0.52 × 1.4 =
  30. 30.0.18 × 1.8 =
  31. 31.0.55 × 0.4 =
  32. 32.0.45 × 2.4 =
  33. 33.7.5 × 1.9 =
  34. 34.0.55 × 0.9 =
  35. 35.0.97 × 3.9 =
  36. 36.1.4 × 2.9 =
  37. 37.0.7 × 0.31 =
  38. 38.0.25 × 2.8 =
  39. 39.8.1 × 0.8 =
  40. 40.7.5 × 0.18 =

Answer key

  1. 2.788
  2. 1.232
  3. 1.092
  4. 0.308
  5. 0.048
  6. 0.41
  7. 0.315
  8. 1.599
  9. 0.432
  10. 2.34
  11. 0.112
  12. 5.58
  13. 0.69
  14. 0.289
  15. 0.272
  16. 32.67
  17. 1.566
  18. 2.343
  19. 0.275
  20. 0.156
  21. 1.118
  22. 0.451
  23. 0.756
  24. 0.024
  25. 0.048
  26. 1.16
  27. 17.48
  28. 0.98
  29. 0.728
  30. 0.324
  31. 0.22
  32. 1.08
  33. 14.25
  34. 0.495
  35. 3.783
  36. 4.06
  37. 0.217
  38. 0.7
  39. 6.48
  40. 1.35

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