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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 808 · 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. 1.8.1 × 0.2 =
  2. 2.0.81 × 0.6 =
  3. 3.0.03 × 1.5 =
  4. 4.0.63 × 1.4 =
  5. 5.0.96 × 0.9 =
  6. 6.7.7 × 0.17 =
  7. 7.0.71 × 2.9 =
  8. 8.7.3 × 0.4 =
  9. 9.2.9 × 0.08 =
  10. 10.0.27 × 0.7 =
  11. 11.1.1 × 0.16 =
  12. 12.1.7 × 3.5 =
  13. 13.7.1 × 1.5 =
  14. 14.2.1 × 0.36 =
  15. 15.0.18 × 3.5 =
  16. 16.5.1 × 0.37 =
  17. 17.3.1 × 3.6 =
  18. 18.0.18 × 1.3 =
  19. 19.8.6 × 0.22 =
  20. 20.3.7 × 2.1 =
  21. 21.0.95 × 0.7 =
  22. 22.0.5 × 2.1 =
  23. 23.3.7 × 3.3 =
  24. 24.2.1 × 0.08 =
  25. 25.0.3 × 0.28 =
  26. 26.8.4 × 3.4 =
  27. 27.0.78 × 3.5 =
  28. 28.0.41 × 1.5 =
  29. 29.2.4 × 0.17 =
  30. 30.0.41 × 2.1 =
  31. 31.0.69 × 0.6 =
  32. 32.4.7 × 3.1 =
  33. 33.0.65 × 3.4 =
  34. 34.0.71 × 0.9 =
  35. 35.3.4 × 0.05 =
  36. 36.9.1 × 3.5 =
  37. 37.2.3 × 2.6 =
  38. 38.0.36 × 2.1 =
  39. 39.2.9 × 1.1 =
  40. 40.7.1 × 0.28 =

Answer key

  1. 1.62
  2. 0.486
  3. 0.045
  4. 0.882
  5. 0.864
  6. 1.309
  7. 2.059
  8. 2.92
  9. 0.232
  10. 0.189
  11. 0.176
  12. 5.95
  13. 10.65
  14. 0.756
  15. 0.63
  16. 1.887
  17. 11.16
  18. 0.234
  19. 1.892
  20. 7.77
  21. 0.665
  22. 1.05
  23. 12.21
  24. 0.168
  25. 0.084
  26. 28.56
  27. 2.73
  28. 0.615
  29. 0.408
  30. 0.861
  31. 0.414
  32. 14.57
  33. 2.21
  34. 0.639
  35. 0.17
  36. 31.85
  37. 5.98
  38. 0.756
  39. 3.19
  40. 1.988

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