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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 316 · 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. 1.0.29 × 1.1 =
  2. 2.0.92 × 1.4 =
  3. 3.2.9 × 0.23 =
  4. 4.2.6 × 0.16 =
  5. 5.0.58 × 0.4 =
  6. 6.0.92 × 1.2 =
  7. 7.8.9 × 0.4 =
  8. 8.6.2 × 1.7 =
  9. 9.0.49 × 0.8 =
  10. 10.4.4 × 0.4 =
  11. 11.4.8 × 3.4 =
  12. 12.0.47 × 1.3 =
  13. 13.7.9 × 1.1 =
  14. 14.8.8 × 2.1 =
  15. 15.0.05 × 1.3 =
  16. 16.0.97 × 0.5 =
  17. 17.2.1 × 0.06 =
  18. 18.0.18 × 2.4 =
  19. 19.0.34 × 0.7 =
  20. 20.1.1 × 0.07 =
  21. 21.0.34 × 0.2 =
  22. 22.7.8 × 0.32 =
  23. 23.0.42 × 3.8 =
  24. 24.0.48 × 0.9 =
  25. 25.0.78 × 0.6 =
  26. 26.8.1 × 3.4 =
  27. 27.0.54 × 1.8 =
  28. 28.7.7 × 0.29 =
  29. 29.0.43 × 3.6 =
  30. 30.6.3 × 1.8 =
  31. 31.2.1 × 0.5 =
  32. 32.0.24 × 1.6 =
  33. 33.3.6 × 0.21 =
  34. 34.6.4 × 0.38 =
  35. 35.7.9 × 0.02 =
  36. 36.0.09 × 0.7 =
  37. 37.0.92 × 1.1 =
  38. 38.0.74 × 3.3 =
  39. 39.7.5 × 1.2 =
  40. 40.0.71 × 1.5 =

Answer key

  1. 0.319
  2. 1.288
  3. 0.667
  4. 0.416
  5. 0.232
  6. 1.104
  7. 3.56
  8. 10.54
  9. 0.392
  10. 1.76
  11. 16.32
  12. 0.611
  13. 8.69
  14. 18.48
  15. 0.065
  16. 0.485
  17. 0.126
  18. 0.432
  19. 0.238
  20. 0.077
  21. 0.068
  22. 2.496
  23. 1.596
  24. 0.432
  25. 0.468
  26. 27.54
  27. 0.972
  28. 2.233
  29. 1.548
  30. 11.34
  31. 1.05
  32. 0.384
  33. 0.756
  34. 2.432
  35. 0.158
  36. 0.063
  37. 1.012
  38. 2.442
  39. 9
  40. 1.065

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