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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 193 · 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. 1.0.06 × 2.8 =
  2. 2.0.35 × 0.3 =
  3. 3.0.11 × 0.8 =
  4. 4.0.24 × 2.7 =
  5. 5.0.4 × 0.8 =
  6. 6.0.3 × 3.9 =
  7. 7.4.5 × 0.9 =
  8. 8.0.09 × 2.5 =
  9. 9.9.9 × 3.8 =
  10. 10.1.4 × 2.1 =
  11. 11.4.1 × 0.21 =
  12. 12.1.9 × 0.31 =
  13. 13.4.2 × 1.1 =
  14. 14.0.34 × 3.8 =
  15. 15.5.4 × 0.3 =
  16. 16.7.6 × 2.3 =
  17. 17.4.4 × 2.6 =
  18. 18.1.9 × 1.5 =
  19. 19.0.07 × 2.6 =
  20. 20.7.7 × 0.09 =
  21. 21.7.4 × 3.4 =
  22. 22.1.3 × 2.9 =
  23. 23.0.18 × 2.1 =
  24. 24.0.72 × 1.6 =
  25. 25.2.5 × 3.1 =
  26. 26.5.8 × 0.05 =
  27. 27.8.9 × 0.4 =
  28. 28.0.03 × 2.8 =
  29. 29.0.8 × 0.38 =
  30. 30.5.5 × 1.6 =
  31. 31.0.61 × 2.3 =
  32. 32.0.79 × 0.7 =
  33. 33.3.1 × 3.6 =
  34. 34.0.78 × 3.4 =
  35. 35.6.9 × 2.8 =
  36. 36.9.2 × 0.9 =
  37. 37.0.55 × 0.2 =
  38. 38.0.9 × 3.1 =
  39. 39.0.34 × 0.7 =
  40. 40.8.9 × 0.12 =

Answer key

  1. 0.168
  2. 0.105
  3. 0.088
  4. 0.648
  5. 0.32
  6. 1.17
  7. 4.05
  8. 0.225
  9. 37.62
  10. 2.94
  11. 0.861
  12. 0.589
  13. 4.62
  14. 1.292
  15. 1.62
  16. 17.48
  17. 11.44
  18. 2.85
  19. 0.182
  20. 0.693
  21. 25.16
  22. 3.77
  23. 0.378
  24. 1.152
  25. 7.75
  26. 0.29
  27. 3.56
  28. 0.084
  29. 0.304
  30. 8.8
  31. 1.403
  32. 0.553
  33. 11.16
  34. 2.652
  35. 19.32
  36. 8.28
  37. 0.11
  38. 2.79
  39. 0.238
  40. 1.068

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