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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 839 · 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. 1.0.88 × 0.9 =
  2. 2.0.23 × 2.9 =
  3. 3.7.9 × 0.4 =
  4. 4.1.7 × 0.6 =
  5. 5.0.42 × 2.1 =
  6. 6.0.66 × 1.4 =
  7. 7.5.4 × 1.9 =
  8. 8.0.25 × 1.4 =
  9. 9.5.7 × 0.2 =
  10. 10.6.1 × 0.22 =
  11. 11.4.8 × 0.02 =
  12. 12.1.4 × 0.21 =
  13. 13.0.19 × 2.4 =
  14. 14.3.1 × 0.7 =
  15. 15.1.3 × 3.3 =
  16. 16.0.74 × 0.8 =
  17. 17.9.6 × 0.35 =
  18. 18.1.5 × 2.2 =
  19. 19.1.8 × 0.8 =
  20. 20.0.41 × 2.5 =
  21. 21.7.1 × 1.1 =
  22. 22.5.8 × 1.3 =
  23. 23.9.1 × 0.06 =
  24. 24.6.5 × 0.9 =
  25. 25.8.2 × 0.05 =
  26. 26.0.18 × 3.4 =
  27. 27.0.46 × 1.4 =
  28. 28.2.8 × 0.4 =
  29. 29.7.9 × 0.25 =
  30. 30.2.9 × 0.9 =
  31. 31.3.4 × 0.32 =
  32. 32.0.03 × 1.5 =
  33. 33.0.61 × 2.8 =
  34. 34.6.8 × 3.2 =
  35. 35.0.17 × 2.3 =
  36. 36.2.9 × 0.5 =
  37. 37.0.67 × 3.5 =
  38. 38.0.78 × 3.2 =
  39. 39.0.2 × 2.7 =
  40. 40.0.69 × 1.7 =

Answer key

  1. 0.792
  2. 0.667
  3. 3.16
  4. 1.02
  5. 0.882
  6. 0.924
  7. 10.26
  8. 0.35
  9. 1.14
  10. 1.342
  11. 0.096
  12. 0.294
  13. 0.456
  14. 2.17
  15. 4.29
  16. 0.592
  17. 3.36
  18. 3.3
  19. 1.44
  20. 1.025
  21. 7.81
  22. 7.54
  23. 0.546
  24. 5.85
  25. 0.41
  26. 0.612
  27. 0.644
  28. 1.12
  29. 1.975
  30. 2.61
  31. 1.088
  32. 0.045
  33. 1.708
  34. 21.76
  35. 0.391
  36. 1.45
  37. 2.345
  38. 2.496
  39. 0.54
  40. 1.173

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