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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 457 · 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. 1.5.1 × 1.3 =
  2. 2.3.1 × 0.36 =
  3. 3.1.3 × 0.3 =
  4. 4.0.73 × 1.1 =
  5. 5.6.3 × 0.5 =
  6. 6.2.9 × 0.02 =
  7. 7.0.48 × 3.6 =
  8. 8.0.38 × 0.9 =
  9. 9.3.8 × 0.5 =
  10. 10.9.8 × 0.12 =
  11. 11.7.9 × 0.11 =
  12. 12.0.11 × 1.2 =
  13. 13.5.5 × 2.5 =
  14. 14.0.22 × 0.5 =
  15. 15.8.4 × 0.14 =
  16. 16.5.8 × 0.32 =
  17. 17.0.08 × 3.7 =
  18. 18.1.1 × 0.5 =
  19. 19.0.67 × 1.1 =
  20. 20.0.88 × 2.4 =
  21. 21.0.39 × 0.9 =
  22. 22.1.5 × 0.2 =
  23. 23.0.59 × 1.2 =
  24. 24.0.66 × 3.5 =
  25. 25.6.1 × 2.2 =
  26. 26.1.5 × 1.1 =
  27. 27.2.3 × 2.4 =
  28. 28.4.1 × 0.25 =
  29. 29.2.1 × 0.8 =
  30. 30.0.29 × 3.2 =
  31. 31.0.24 × 1.2 =
  32. 32.0.37 × 2.1 =
  33. 33.7.1 × 0.8 =
  34. 34.6.7 × 0.31 =
  35. 35.1.2 × 3.1 =
  36. 36.5.6 × 1.6 =
  37. 37.0.16 × 0.9 =
  38. 38.0.71 × 0.6 =
  39. 39.0.59 × 3.5 =
  40. 40.5.9 × 3.9 =

Answer key

  1. 6.63
  2. 1.116
  3. 0.39
  4. 0.803
  5. 3.15
  6. 0.058
  7. 1.728
  8. 0.342
  9. 1.9
  10. 1.176
  11. 0.869
  12. 0.132
  13. 13.75
  14. 0.11
  15. 1.176
  16. 1.856
  17. 0.296
  18. 0.55
  19. 0.737
  20. 2.112
  21. 0.351
  22. 0.3
  23. 0.708
  24. 2.31
  25. 13.42
  26. 1.65
  27. 5.52
  28. 1.025
  29. 1.68
  30. 0.928
  31. 0.288
  32. 0.777
  33. 5.68
  34. 2.077
  35. 3.72
  36. 8.96
  37. 0.144
  38. 0.426
  39. 2.065
  40. 23.01

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