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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 993 · 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. 1.2.6 × 1.1 =
  2. 2.1.5 × 0.04 =
  3. 3.2.7 × 0.5 =
  4. 4.6.5 × 0.19 =
  5. 5.1.6 × 0.09 =
  6. 6.5.6 × 3.9 =
  7. 7.0.92 × 1.2 =
  8. 8.4.7 × 0.11 =
  9. 9.0.38 × 3.5 =
  10. 10.0.14 × 1.1 =
  11. 11.0.07 × 3.5 =
  12. 12.0.62 × 3.1 =
  13. 13.0.81 × 0.2 =
  14. 14.0.33 × 2.4 =
  15. 15.0.28 × 2.4 =
  16. 16.9.5 × 2.8 =
  17. 17.0.02 × 0.9 =
  18. 18.7.2 × 1.1 =
  19. 19.0.51 × 1.1 =
  20. 20.7.6 × 0.06 =
  21. 21.9.4 × 0.04 =
  22. 22.6.2 × 3.1 =
  23. 23.0.86 × 1.6 =
  24. 24.0.09 × 2.2 =
  25. 25.0.46 × 2.2 =
  26. 26.0.35 × 1.9 =
  27. 27.0.87 × 2.4 =
  28. 28.8.1 × 0.3 =
  29. 29.8.4 × 0.34 =
  30. 30.0.83 × 3.5 =
  31. 31.0.77 × 1.1 =
  32. 32.9.2 × 3.7 =
  33. 33.8.1 × 3.6 =
  34. 34.1.5 × 0.31 =
  35. 35.1.1 × 0.31 =
  36. 36.0.38 × 3.8 =
  37. 37.0.54 × 3.5 =
  38. 38.9.4 × 0.18 =
  39. 39.5.2 × 0.7 =
  40. 40.0.84 × 0.6 =

Answer key

  1. 2.86
  2. 0.06
  3. 1.35
  4. 1.235
  5. 0.144
  6. 21.84
  7. 1.104
  8. 0.517
  9. 1.33
  10. 0.154
  11. 0.245
  12. 1.922
  13. 0.162
  14. 0.792
  15. 0.672
  16. 26.6
  17. 0.018
  18. 7.92
  19. 0.561
  20. 0.456
  21. 0.376
  22. 19.22
  23. 1.376
  24. 0.198
  25. 1.012
  26. 0.665
  27. 2.088
  28. 2.43
  29. 2.856
  30. 2.905
  31. 0.847
  32. 34.04
  33. 29.16
  34. 0.465
  35. 0.341
  36. 1.444
  37. 1.89
  38. 1.692
  39. 3.64
  40. 0.504

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