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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 891 · 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. 1.4.1 × 2.3 =
  2. 2.8.3 × 0.12 =
  3. 3.3.2 × 2.8 =
  4. 4.0.84 × 0.8 =
  5. 5.0.46 × 1.5 =
  6. 6.0.74 × 1.3 =
  7. 7.4.5 × 0.31 =
  8. 8.0.04 × 0.5 =
  9. 9.2.1 × 0.6 =
  10. 10.0.4 × 2.1 =
  11. 11.0.13 × 0.8 =
  12. 12.0.02 × 1.2 =
  13. 13.8.6 × 3.1 =
  14. 14.7.9 × 0.23 =
  15. 15.4.7 × 0.37 =
  16. 16.0.72 × 1.4 =
  17. 17.0.65 × 0.8 =
  18. 18.0.05 × 2.4 =
  19. 19.0.91 × 0.9 =
  20. 20.4.2 × 0.26 =
  21. 21.0.38 × 1.1 =
  22. 22.4.4 × 2.5 =
  23. 23.0.18 × 1.2 =
  24. 24.0.72 × 2.4 =
  25. 25.0.66 × 3.8 =
  26. 26.6.1 × 0.6 =
  27. 27.1.9 × 0.9 =
  28. 28.0.03 × 0.7 =
  29. 29.3.6 × 0.24 =
  30. 30.0.88 × 2.8 =
  31. 31.9.8 × 0.17 =
  32. 32.0.22 × 0.3 =
  33. 33.1.3 × 1.5 =
  34. 34.0.2 × 0.12 =
  35. 35.7.4 × 0.22 =
  36. 36.0.59 × 2.2 =
  37. 37.8.3 × 1.3 =
  38. 38.0.81 × 3.5 =
  39. 39.1.4 × 0.2 =
  40. 40.5.9 × 0.35 =

Answer key

  1. 9.43
  2. 0.996
  3. 8.96
  4. 0.672
  5. 0.69
  6. 0.962
  7. 1.395
  8. 0.02
  9. 1.26
  10. 0.84
  11. 0.104
  12. 0.024
  13. 26.66
  14. 1.817
  15. 1.739
  16. 1.008
  17. 0.52
  18. 0.12
  19. 0.819
  20. 1.092
  21. 0.418
  22. 11
  23. 0.216
  24. 1.728
  25. 2.508
  26. 3.66
  27. 1.71
  28. 0.021
  29. 0.864
  30. 2.464
  31. 1.666
  32. 0.066
  33. 1.95
  34. 0.024
  35. 1.628
  36. 1.298
  37. 10.79
  38. 2.835
  39. 0.28
  40. 2.065

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