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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 768 · 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. 1.2.8 × 0.27 =
  2. 2.0.91 × 1.6 =
  3. 3.0.58 × 0.4 =
  4. 4.0.81 × 2.5 =
  5. 5.0.71 × 0.9 =
  6. 6.1.6 × 0.11 =
  7. 7.0.52 × 1.9 =
  8. 8.2.1 × 3.1 =
  9. 9.0.61 × 3.9 =
  10. 10.0.56 × 2.1 =
  11. 11.6.4 × 0.14 =
  12. 12.0.54 × 0.3 =
  13. 13.0.86 × 0.6 =
  14. 14.0.91 × 1.6 =
  15. 15.0.91 × 0.3 =
  16. 16.0.71 × 3.1 =
  17. 17.1.6 × 3.2 =
  18. 18.0.02 × 2.9 =
  19. 19.3.4 × 0.31 =
  20. 20.0.37 × 2.1 =
  21. 21.9.3 × 0.36 =
  22. 22.0.54 × 3.1 =
  23. 23.4.1 × 1.5 =
  24. 24.9.4 × 0.07 =
  25. 25.0.96 × 3.1 =
  26. 26.0.42 × 0.2 =
  27. 27.6.1 × 0.05 =
  28. 28.0.75 × 3.2 =
  29. 29.4.3 × 3.7 =
  30. 30.2.1 × 0.37 =
  31. 31.0.22 × 2.7 =
  32. 32.5.6 × 2.1 =
  33. 33.8.4 × 0.14 =
  34. 34.8.2 × 3.1 =
  35. 35.0.71 × 1.6 =
  36. 36.8.6 × 0.3 =
  37. 37.6.1 × 1.9 =
  38. 38.0.85 × 1.6 =
  39. 39.6.1 × 0.33 =
  40. 40.0.15 × 3.1 =

Answer key

  1. 0.756
  2. 1.456
  3. 0.232
  4. 2.025
  5. 0.639
  6. 0.176
  7. 0.988
  8. 6.51
  9. 2.379
  10. 1.176
  11. 0.896
  12. 0.162
  13. 0.516
  14. 1.456
  15. 0.273
  16. 2.201
  17. 5.12
  18. 0.058
  19. 1.054
  20. 0.777
  21. 3.348
  22. 1.674
  23. 6.15
  24. 0.658
  25. 2.976
  26. 0.084
  27. 0.305
  28. 2.4
  29. 15.91
  30. 0.777
  31. 0.594
  32. 11.76
  33. 1.176
  34. 25.42
  35. 1.136
  36. 2.58
  37. 11.59
  38. 1.36
  39. 2.013
  40. 0.465

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