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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 333 · 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. 1.2.3 × 0.25 =
  2. 2.5.4 × 2.8 =
  3. 3.5.6 × 0.39 =
  4. 4.0.39 × 2.8 =
  5. 5.9.1 × 0.39 =
  6. 6.0.82 × 3.2 =
  7. 7.1.3 × 3.4 =
  8. 8.0.85 × 3.1 =
  9. 9.0.91 × 3.1 =
  10. 10.0.81 × 0.7 =
  11. 11.0.09 × 1.2 =
  12. 12.7.7 × 0.26 =
  13. 13.0.76 × 3.4 =
  14. 14.6.1 × 0.25 =
  15. 15.0.47 × 3.5 =
  16. 16.0.52 × 0.7 =
  17. 17.1.4 × 0.37 =
  18. 18.0.05 × 1.1 =
  19. 19.0.9 × 0.32 =
  20. 20.9.5 × 1.1 =
  21. 21.0.79 × 2.6 =
  22. 22.6.1 × 0.35 =
  23. 23.1.4 × 0.36 =
  24. 24.8.2 × 0.6 =
  25. 25.4.1 × 1.2 =
  26. 26.0.49 × 0.9 =
  27. 27.0.52 × 0.5 =
  28. 28.2.2 × 0.06 =
  29. 29.4.8 × 0.8 =
  30. 30.8.5 × 0.7 =
  31. 31.1.2 × 0.36 =
  32. 32.0.45 × 0.7 =
  33. 33.6.1 × 0.31 =
  34. 34.0.26 × 1.9 =
  35. 35.1.6 × 0.15 =
  36. 36.3.6 × 0.21 =
  37. 37.9.3 × 1.8 =
  38. 38.0.51 × 0.9 =
  39. 39.5.5 × 1.2 =
  40. 40.0.88 × 0.2 =

Answer key

  1. 0.575
  2. 15.12
  3. 2.184
  4. 1.092
  5. 3.549
  6. 2.624
  7. 4.42
  8. 2.635
  9. 2.821
  10. 0.567
  11. 0.108
  12. 2.002
  13. 2.584
  14. 1.525
  15. 1.645
  16. 0.364
  17. 0.518
  18. 0.055
  19. 0.288
  20. 10.45
  21. 2.054
  22. 2.135
  23. 0.504
  24. 4.92
  25. 4.92
  26. 0.441
  27. 0.26
  28. 0.132
  29. 3.84
  30. 5.95
  31. 0.432
  32. 0.315
  33. 1.891
  34. 0.494
  35. 0.24
  36. 0.756
  37. 16.74
  38. 0.459
  39. 6.6
  40. 0.176

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