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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 76 · 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. 1.7.2 × 0.9 =
  2. 2.0.61 × 1.8 =
  3. 3.6.3 × 2.9 =
  4. 4.0.16 × 2.1 =
  5. 5.0.7 × 0.03 =
  6. 6.0.43 × 2.8 =
  7. 7.0.02 × 2.5 =
  8. 8.2.6 × 0.05 =
  9. 9.0.53 × 0.6 =
  10. 10.0.59 × 0.6 =
  11. 11.9.5 × 0.25 =
  12. 12.1.3 × 2.6 =
  13. 13.1.5 × 2.7 =
  14. 14.8.2 × 2.3 =
  15. 15.0.99 × 2.8 =
  16. 16.0.6 × 0.08 =
  17. 17.5.4 × 1.3 =
  18. 18.2.2 × 0.9 =
  19. 19.0.08 × 1.8 =
  20. 20.7.3 × 2.7 =
  21. 21.0.15 × 2.3 =
  22. 22.0.8 × 0.02 =
  23. 23.5.8 × 0.15 =
  24. 24.0.62 × 0.8 =
  25. 25.0.8 × 2.2 =
  26. 26.2.9 × 1.8 =
  27. 27.3.1 × 0.3 =
  28. 28.0.02 × 3.3 =
  29. 29.7.8 × 2.1 =
  30. 30.0.24 × 1.8 =
  31. 31.1.5 × 3.8 =
  32. 32.0.29 × 2.1 =
  33. 33.0.81 × 1.1 =
  34. 34.2.8 × 0.3 =
  35. 35.0.77 × 1.3 =
  36. 36.0.09 × 1.1 =
  37. 37.0.51 × 2.7 =
  38. 38.7.1 × 1.8 =
  39. 39.0.33 × 0.8 =
  40. 40.7.3 × 0.15 =

Answer key

  1. 6.48
  2. 1.098
  3. 18.27
  4. 0.336
  5. 0.021
  6. 1.204
  7. 0.05
  8. 0.13
  9. 0.318
  10. 0.354
  11. 2.375
  12. 3.38
  13. 4.05
  14. 18.86
  15. 2.772
  16. 0.048
  17. 7.02
  18. 1.98
  19. 0.144
  20. 19.71
  21. 0.345
  22. 0.016
  23. 0.87
  24. 0.496
  25. 1.76
  26. 5.22
  27. 0.93
  28. 0.066
  29. 16.38
  30. 0.432
  31. 5.7
  32. 0.609
  33. 0.891
  34. 0.84
  35. 1.001
  36. 0.099
  37. 1.377
  38. 12.78
  39. 0.264
  40. 1.095

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