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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 782 · 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. 1.0.49 × 3.9 =
  2. 2.4.3 × 0.36 =
  3. 3.0.99 × 2.9 =
  4. 4.0.29 × 1.5 =
  5. 5.9.3 × 0.02 =
  6. 6.5.9 × 2.6 =
  7. 7.0.54 × 0.3 =
  8. 8.0.61 × 1.9 =
  9. 9.7.8 × 0.5 =
  10. 10.0.76 × 1.1 =
  11. 11.5.4 × 0.18 =
  12. 12.3.1 × 2.6 =
  13. 13.0.38 × 1.8 =
  14. 14.4.3 × 0.5 =
  15. 15.0.41 × 0.2 =
  16. 16.0.92 × 3.8 =
  17. 17.7.2 × 2.2 =
  18. 18.3.8 × 2.2 =
  19. 19.0.26 × 1.2 =
  20. 20.8.9 × 1.3 =
  21. 21.9.1 × 0.2 =
  22. 22.4.6 × 2.1 =
  23. 23.8.4 × 0.39 =
  24. 24.0.4 × 1.3 =
  25. 25.0.2 × 1.2 =
  26. 26.0.37 × 2.5 =
  27. 27.0.24 × 1.1 =
  28. 28.0.83 × 1.4 =
  29. 29.9.4 × 0.31 =
  30. 30.0.21 × 3.3 =
  31. 31.9.3 × 0.25 =
  32. 32.0.97 × 3.9 =
  33. 33.0.77 × 2.5 =
  34. 34.0.9 × 2.7 =
  35. 35.0.19 × 0.9 =
  36. 36.0.86 × 0.6 =
  37. 37.2.9 × 0.34 =
  38. 38.3.9 × 2.1 =
  39. 39.2.5 × 0.08 =
  40. 40.2.1 × 0.8 =

Answer key

  1. 1.911
  2. 1.548
  3. 2.871
  4. 0.435
  5. 0.186
  6. 15.34
  7. 0.162
  8. 1.159
  9. 3.9
  10. 0.836
  11. 0.972
  12. 8.06
  13. 0.684
  14. 2.15
  15. 0.082
  16. 3.496
  17. 15.84
  18. 8.36
  19. 0.312
  20. 11.57
  21. 1.82
  22. 9.66
  23. 3.276
  24. 0.52
  25. 0.24
  26. 0.925
  27. 0.264
  28. 1.162
  29. 2.914
  30. 0.693
  31. 2.325
  32. 3.783
  33. 1.925
  34. 2.43
  35. 0.171
  36. 0.516
  37. 0.986
  38. 8.19
  39. 0.2
  40. 1.68

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