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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 302 · 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. 1.7.1 × 0.11 =
  2. 2.0.46 × 1.9 =
  3. 3.0.92 × 0.3 =
  4. 4.2.4 × 0.21 =
  5. 5.0.53 × 0.7 =
  6. 6.1.1 × 0.8 =
  7. 7.5.1 × 0.17 =
  8. 8.0.09 × 1.2 =
  9. 9.0.37 × 3.5 =
  10. 10.2.8 × 2.5 =
  11. 11.0.88 × 1.9 =
  12. 12.0.3 × 2.4 =
  13. 13.0.52 × 0.6 =
  14. 14.0.89 × 3.5 =
  15. 15.7.2 × 2.9 =
  16. 16.5.8 × 0.35 =
  17. 17.0.37 × 2.1 =
  18. 18.0.22 × 3.5 =
  19. 19.4.4 × 2.2 =
  20. 20.4.1 × 2.7 =
  21. 21.6.9 × 0.07 =
  22. 22.0.57 × 2.6 =
  23. 23.6.1 × 0.8 =
  24. 24.2.9 × 0.5 =
  25. 25.8.1 × 1.7 =
  26. 26.1.4 × 0.9 =
  27. 27.0.57 × 1.1 =
  28. 28.7.3 × 2.9 =
  29. 29.0.85 × 2.1 =
  30. 30.5.6 × 2.6 =
  31. 31.7.4 × 1.9 =
  32. 32.0.45 × 0.5 =
  33. 33.6.5 × 1.5 =
  34. 34.6.4 × 0.39 =
  35. 35.4.6 × 0.34 =
  36. 36.0.14 × 2.6 =
  37. 37.0.14 × 0.4 =
  38. 38.1.3 × 0.7 =
  39. 39.6.4 × 0.37 =
  40. 40.4.4 × 0.6 =

Answer key

  1. 0.781
  2. 0.874
  3. 0.276
  4. 0.504
  5. 0.371
  6. 0.88
  7. 0.867
  8. 0.108
  9. 1.295
  10. 7
  11. 1.672
  12. 0.72
  13. 0.312
  14. 3.115
  15. 20.88
  16. 2.03
  17. 0.777
  18. 0.77
  19. 9.68
  20. 11.07
  21. 0.483
  22. 1.482
  23. 4.88
  24. 1.45
  25. 13.77
  26. 1.26
  27. 0.627
  28. 21.17
  29. 1.785
  30. 14.56
  31. 14.06
  32. 0.225
  33. 9.75
  34. 2.496
  35. 1.564
  36. 0.364
  37. 0.056
  38. 0.91
  39. 2.368
  40. 2.64

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