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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 914 · 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. 1.0.43 × 3.5 =
  2. 2.1.1 × 0.3 =
  3. 3.4.8 × 3.8 =
  4. 4.0.26 × 0.7 =
  5. 5.1.2 × 0.09 =
  6. 6.0.68 × 0.6 =
  7. 7.3.8 × 0.23 =
  8. 8.7.4 × 0.36 =
  9. 9.4.7 × 3.6 =
  10. 10.6.8 × 1.8 =
  11. 11.0.59 × 2.8 =
  12. 12.0.21 × 3.9 =
  13. 13.0.43 × 0.9 =
  14. 14.0.64 × 2.7 =
  15. 15.0.11 × 1.9 =
  16. 16.6.7 × 0.21 =
  17. 17.4.9 × 1.8 =
  18. 18.6.1 × 1.5 =
  19. 19.0.22 × 0.2 =
  20. 20.1.6 × 1.8 =
  21. 21.8.1 × 1.3 =
  22. 22.0.64 × 1.9 =
  23. 23.0.8 × 0.02 =
  24. 24.7.9 × 0.07 =
  25. 25.9.9 × 2.3 =
  26. 26.0.26 × 2.6 =
  27. 27.0.18 × 3.7 =
  28. 28.9.1 × 0.7 =
  29. 29.0.88 × 2.2 =
  30. 30.0.41 × 2.2 =
  31. 31.9.2 × 0.6 =
  32. 32.4.7 × 0.16 =
  33. 33.7.2 × 0.29 =
  34. 34.2.9 × 1.5 =
  35. 35.4.1 × 0.02 =
  36. 36.0.14 × 2.6 =
  37. 37.0.09 × 0.5 =
  38. 38.2.2 × 1.6 =
  39. 39.9.1 × 0.24 =
  40. 40.0.11 × 0.2 =

Answer key

  1. 1.505
  2. 0.33
  3. 18.24
  4. 0.182
  5. 0.108
  6. 0.408
  7. 0.874
  8. 2.664
  9. 16.92
  10. 12.24
  11. 1.652
  12. 0.819
  13. 0.387
  14. 1.728
  15. 0.209
  16. 1.407
  17. 8.82
  18. 9.15
  19. 0.044
  20. 2.88
  21. 10.53
  22. 1.216
  23. 0.016
  24. 0.553
  25. 22.77
  26. 0.676
  27. 0.666
  28. 6.37
  29. 1.936
  30. 0.902
  31. 5.52
  32. 0.752
  33. 2.088
  34. 4.35
  35. 0.082
  36. 0.364
  37. 0.045
  38. 3.52
  39. 2.184
  40. 0.022

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