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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 760 · 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. 1.0.57 × 2.6 =
  2. 2.0.17 × 0.9 =
  3. 3.0.72 × 0.2 =
  4. 4.0.38 × 2.7 =
  5. 5.6.9 × 0.05 =
  6. 6.0.79 × 3.9 =
  7. 7.8.8 × 0.27 =
  8. 8.0.71 × 2.9 =
  9. 9.5.5 × 0.11 =
  10. 10.4.3 × 2.1 =
  11. 11.0.02 × 1.1 =
  12. 12.0.31 × 3.7 =
  13. 13.0.37 × 1.1 =
  14. 14.4.9 × 3.1 =
  15. 15.0.93 × 2.9 =
  16. 16.5.9 × 0.07 =
  17. 17.8.4 × 0.21 =
  18. 18.0.2 × 0.34 =
  19. 19.0.09 × 1.9 =
  20. 20.2.8 × 0.15 =
  21. 21.1.6 × 3.4 =
  22. 22.2.4 × 0.22 =
  23. 23.0.23 × 0.7 =
  24. 24.0.09 × 1.1 =
  25. 25.4.1 × 0.27 =
  26. 26.8.1 × 0.3 =
  27. 27.0.76 × 3.4 =
  28. 28.6.1 × 0.07 =
  29. 29.2.2 × 1.1 =
  30. 30.0.07 × 0.9 =
  31. 31.0.26 × 1.6 =
  32. 32.0.29 × 3.9 =
  33. 33.0.16 × 0.5 =
  34. 34.0.94 × 0.8 =
  35. 35.9.3 × 0.07 =
  36. 36.0.65 × 3.2 =
  37. 37.6.5 × 0.2 =
  38. 38.0.07 × 1.2 =
  39. 39.2.6 × 0.05 =
  40. 40.0.7 × 1.1 =

Answer key

  1. 1.482
  2. 0.153
  3. 0.144
  4. 1.026
  5. 0.345
  6. 3.081
  7. 2.376
  8. 2.059
  9. 0.605
  10. 9.03
  11. 0.022
  12. 1.147
  13. 0.407
  14. 15.19
  15. 2.697
  16. 0.413
  17. 1.764
  18. 0.068
  19. 0.171
  20. 0.42
  21. 5.44
  22. 0.528
  23. 0.161
  24. 0.099
  25. 1.107
  26. 2.43
  27. 2.584
  28. 0.427
  29. 2.42
  30. 0.063
  31. 0.416
  32. 1.131
  33. 0.08
  34. 0.752
  35. 0.651
  36. 2.08
  37. 1.3
  38. 0.084
  39. 0.13
  40. 0.77

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