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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 520 · 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. 1.0.82 × 0.7 =
  2. 2.3.9 × 1.2 =
  3. 3.3.8 × 3.5 =
  4. 4.6.9 × 0.5 =
  5. 5.1.7 × 0.09 =
  6. 6.0.42 × 1.9 =
  7. 7.8.1 × 3.1 =
  8. 8.5.1 × 0.29 =
  9. 9.0.49 × 3.2 =
  10. 10.0.34 × 1.5 =
  11. 11.0.4 × 3.5 =
  12. 12.0.7 × 0.09 =
  13. 13.8.8 × 0.15 =
  14. 14.0.02 × 3.3 =
  15. 15.2.4 × 1.1 =
  16. 16.0.31 × 2.8 =
  17. 17.0.12 × 0.2 =
  18. 18.9.1 × 0.07 =
  19. 19.0.51 × 3.9 =
  20. 20.6.7 × 0.25 =
  21. 21.0.42 × 1.4 =
  22. 22.0.31 × 3.7 =
  23. 23.0.99 × 1.5 =
  24. 24.1.1 × 0.21 =
  25. 25.1.4 × 1.4 =
  26. 26.5.9 × 0.4 =
  27. 27.7.5 × 0.25 =
  28. 28.4.7 × 0.23 =
  29. 29.1.5 × 3.9 =
  30. 30.4.7 × 0.07 =
  31. 31.0.12 × 0.7 =
  32. 32.0.55 × 3.5 =
  33. 33.7.2 × 3.6 =
  34. 34.4.6 × 0.29 =
  35. 35.0.99 × 2.5 =
  36. 36.0.3 × 0.8 =
  37. 37.6.8 × 0.12 =
  38. 38.0.73 × 2.7 =
  39. 39.0.66 × 0.9 =
  40. 40.0.17 × 1.9 =

Answer key

  1. 0.574
  2. 4.68
  3. 13.3
  4. 3.45
  5. 0.153
  6. 0.798
  7. 25.11
  8. 1.479
  9. 1.568
  10. 0.51
  11. 1.4
  12. 0.063
  13. 1.32
  14. 0.066
  15. 2.64
  16. 0.868
  17. 0.024
  18. 0.637
  19. 1.989
  20. 1.675
  21. 0.588
  22. 1.147
  23. 1.485
  24. 0.231
  25. 1.96
  26. 2.36
  27. 1.875
  28. 1.081
  29. 5.85
  30. 0.329
  31. 0.084
  32. 1.925
  33. 25.92
  34. 1.334
  35. 2.475
  36. 0.24
  37. 0.816
  38. 1.971
  39. 0.594
  40. 0.323

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