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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 271 · 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. 1.3.8 × 0.39 =
  2. 2.7.6 × 3.2 =
  3. 3.3.3 × 1.1 =
  4. 4.5.5 × 3.4 =
  5. 5.0.02 × 3.6 =
  6. 6.0.11 × 2.2 =
  7. 7.0.08 × 2.8 =
  8. 8.5.8 × 0.6 =
  9. 9.0.31 × 1.1 =
  10. 10.9.1 × 0.9 =
  11. 11.6.1 × 0.25 =
  12. 12.3.1 × 0.06 =
  13. 13.0.39 × 0.7 =
  14. 14.3.4 × 3.2 =
  15. 15.0.54 × 0.2 =
  16. 16.0.74 × 1.1 =
  17. 17.0.51 × 2.8 =
  18. 18.0.78 × 0.7 =
  19. 19.0.94 × 0.2 =
  20. 20.8.2 × 3.1 =
  21. 21.7.3 × 3.9 =
  22. 22.0.92 × 1.2 =
  23. 23.0.61 × 3.8 =
  24. 24.4.1 × 0.35 =
  25. 25.0.42 × 0.3 =
  26. 26.0.66 × 2.9 =
  27. 27.5.4 × 2.9 =
  28. 28.1.2 × 0.03 =
  29. 29.0.78 × 3.6 =
  30. 30.0.95 × 0.5 =
  31. 31.4.1 × 1.8 =
  32. 32.0.54 × 1.8 =
  33. 33.0.66 × 0.8 =
  34. 34.0.81 × 0.7 =
  35. 35.2.2 × 0.31 =
  36. 36.0.67 × 1.3 =
  37. 37.4.1 × 0.04 =
  38. 38.0.63 × 0.2 =
  39. 39.0.36 × 2.3 =
  40. 40.9.1 × 0.24 =

Answer key

  1. 1.482
  2. 24.32
  3. 3.63
  4. 18.7
  5. 0.072
  6. 0.242
  7. 0.224
  8. 3.48
  9. 0.341
  10. 8.19
  11. 1.525
  12. 0.186
  13. 0.273
  14. 10.88
  15. 0.108
  16. 0.814
  17. 1.428
  18. 0.546
  19. 0.188
  20. 25.42
  21. 28.47
  22. 1.104
  23. 2.318
  24. 1.435
  25. 0.126
  26. 1.914
  27. 15.66
  28. 0.036
  29. 2.808
  30. 0.475
  31. 7.38
  32. 0.972
  33. 0.528
  34. 0.567
  35. 0.682
  36. 0.871
  37. 0.164
  38. 0.126
  39. 0.828
  40. 2.184

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