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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 277 · 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. 1.0.8 × 0.08 =
  2. 2.4.1 × 1.8 =
  3. 3.0.14 × 2.8 =
  4. 4.0.84 × 1.6 =
  5. 5.9.1 × 0.8 =
  6. 6.0.98 × 1.8 =
  7. 7.1.4 × 1.6 =
  8. 8.0.97 × 2.6 =
  9. 9.7.4 × 1.2 =
  10. 10.0.88 × 1.7 =
  11. 11.3.8 × 3.9 =
  12. 12.8.2 × 0.34 =
  13. 13.0.61 × 3.3 =
  14. 14.0.7 × 0.37 =
  15. 15.0.27 × 2.9 =
  16. 16.0.81 × 3.1 =
  17. 17.9.4 × 0.33 =
  18. 18.0.31 × 1.3 =
  19. 19.0.04 × 0.3 =
  20. 20.0.93 × 1.3 =
  21. 21.0.65 × 1.6 =
  22. 22.0.97 × 3.5 =
  23. 23.0.87 × 1.4 =
  24. 24.1.9 × 0.08 =
  25. 25.0.86 × 1.1 =
  26. 26.0.72 × 0.5 =
  27. 27.8.7 × 0.7 =
  28. 28.0.91 × 1.1 =
  29. 29.5.5 × 0.05 =
  30. 30.4.1 × 0.21 =
  31. 31.6.8 × 0.9 =
  32. 32.9.1 × 1.9 =
  33. 33.0.45 × 3.4 =
  34. 34.0.74 × 1.6 =
  35. 35.1.8 × 2.1 =
  36. 36.0.48 × 2.8 =
  37. 37.4.1 × 0.27 =
  38. 38.8.9 × 0.8 =
  39. 39.0.31 × 1.3 =
  40. 40.9.3 × 2.5 =

Answer key

  1. 0.064
  2. 7.38
  3. 0.392
  4. 1.344
  5. 7.28
  6. 1.764
  7. 2.24
  8. 2.522
  9. 8.88
  10. 1.496
  11. 14.82
  12. 2.788
  13. 2.013
  14. 0.259
  15. 0.783
  16. 2.511
  17. 3.102
  18. 0.403
  19. 0.012
  20. 1.209
  21. 1.04
  22. 3.395
  23. 1.218
  24. 0.152
  25. 0.946
  26. 0.36
  27. 6.09
  28. 1.001
  29. 0.275
  30. 0.861
  31. 6.12
  32. 17.29
  33. 1.53
  34. 1.184
  35. 3.78
  36. 1.344
  37. 1.107
  38. 7.12
  39. 0.403
  40. 23.25

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