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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 820 · 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. 1.1.2 × 0.08 =
  2. 2.4.1 × 1.1 =
  3. 3.0.2 × 1.7 =
  4. 4.0.47 × 0.7 =
  5. 5.3.1 × 0.22 =
  6. 6.0.03 × 1.1 =
  7. 7.0.81 × 3.9 =
  8. 8.0.98 × 3.9 =
  9. 9.6.1 × 0.2 =
  10. 10.0.75 × 2.3 =
  11. 11.0.21 × 1.7 =
  12. 12.0.61 × 1.2 =
  13. 13.3.1 × 2.8 =
  14. 14.5.5 × 1.2 =
  15. 15.1.8 × 0.5 =
  16. 16.0.3 × 0.9 =
  17. 17.3.4 × 0.22 =
  18. 18.0.78 × 0.7 =
  19. 19.9.6 × 0.02 =
  20. 20.1.7 × 0.31 =
  21. 21.6.1 × 0.14 =
  22. 22.0.8 × 0.12 =
  23. 23.0.66 × 0.5 =
  24. 24.0.05 × 3.1 =
  25. 25.0.39 × 1.8 =
  26. 26.4.9 × 2.1 =
  27. 27.4.3 × 0.14 =
  28. 28.0.3 × 0.3 =
  29. 29.7.1 × 1.3 =
  30. 30.4.7 × 0.04 =
  31. 31.0.72 × 3.1 =
  32. 32.6.2 × 2.7 =
  33. 33.0.7 × 2.2 =
  34. 34.0.22 × 2.1 =
  35. 35.0.73 × 1.5 =
  36. 36.0.48 × 3.1 =
  37. 37.4.5 × 1.7 =
  38. 38.0.08 × 2.3 =
  39. 39.2.5 × 0.22 =
  40. 40.4.7 × 3.3 =

Answer key

  1. 0.096
  2. 4.51
  3. 0.34
  4. 0.329
  5. 0.682
  6. 0.033
  7. 3.159
  8. 3.822
  9. 1.22
  10. 1.725
  11. 0.357
  12. 0.732
  13. 8.68
  14. 6.6
  15. 0.9
  16. 0.27
  17. 0.748
  18. 0.546
  19. 0.192
  20. 0.527
  21. 0.854
  22. 0.096
  23. 0.33
  24. 0.155
  25. 0.702
  26. 10.29
  27. 0.602
  28. 0.09
  29. 9.23
  30. 0.188
  31. 2.232
  32. 16.74
  33. 1.54
  34. 0.462
  35. 1.095
  36. 1.488
  37. 7.65
  38. 0.184
  39. 0.55
  40. 15.51

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