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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 332 · 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 × 0.04 =
  2. 2.0.76 × 3.9 =
  3. 3.9.4 × 1.1 =
  4. 4.0.91 × 3.5 =
  5. 5.6.2 × 1.2 =
  6. 6.9.7 × 3.2 =
  7. 7.2.1 × 1.4 =
  8. 8.6.9 × 0.24 =
  9. 9.0.75 × 3.1 =
  10. 10.0.51 × 1.5 =
  11. 11.0.12 × 2.8 =
  12. 12.0.21 × 3.1 =
  13. 13.2.7 × 3.1 =
  14. 14.5.9 × 3.7 =
  15. 15.6.4 × 3.9 =
  16. 16.0.32 × 1.1 =
  17. 17.0.84 × 0.2 =
  18. 18.0.62 × 1.6 =
  19. 19.2.8 × 0.11 =
  20. 20.3.3 × 0.31 =
  21. 21.0.25 × 0.7 =
  22. 22.0.61 × 0.4 =
  23. 23.2.4 × 1.2 =
  24. 24.0.97 × 1.1 =
  25. 25.5.2 × 0.07 =
  26. 26.0.67 × 0.2 =
  27. 27.5.1 × 2.5 =
  28. 28.0.2 × 0.7 =
  29. 29.0.94 × 2.7 =
  30. 30.0.04 × 2.2 =
  31. 31.3.5 × 0.39 =
  32. 32.0.84 × 0.7 =
  33. 33.0.3 × 0.4 =
  34. 34.0.29 × 2.2 =
  35. 35.0.8 × 0.37 =
  36. 36.0.65 × 0.9 =
  37. 37.7.7 × 2.8 =
  38. 38.6.3 × 1.4 =
  39. 39.0.16 × 0.2 =
  40. 40.0.34 × 1.1 =

Answer key

  1. 0.152
  2. 2.964
  3. 10.34
  4. 3.185
  5. 7.44
  6. 31.04
  7. 2.94
  8. 1.656
  9. 2.325
  10. 0.765
  11. 0.336
  12. 0.651
  13. 8.37
  14. 21.83
  15. 24.96
  16. 0.352
  17. 0.168
  18. 0.992
  19. 0.308
  20. 1.023
  21. 0.175
  22. 0.244
  23. 2.88
  24. 1.067
  25. 0.364
  26. 0.134
  27. 12.75
  28. 0.14
  29. 2.538
  30. 0.088
  31. 1.365
  32. 0.588
  33. 0.12
  34. 0.638
  35. 0.296
  36. 0.585
  37. 21.56
  38. 8.82
  39. 0.032
  40. 0.374

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