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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 879 · 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. 1.7.1 × 0.17 =
  2. 2.7.1 × 1.3 =
  3. 3.0.18 × 1.9 =
  4. 4.5.4 × 2.4 =
  5. 5.1.6 × 0.23 =
  6. 6.3.7 × 0.34 =
  7. 7.1.4 × 1.2 =
  8. 8.6.9 × 0.15 =
  9. 9.0.91 × 2.7 =
  10. 10.8.7 × 0.06 =
  11. 11.4.5 × 0.28 =
  12. 12.2.2 × 2.5 =
  13. 13.1.1 × 0.07 =
  14. 14.5.9 × 2.6 =
  15. 15.0.26 × 1.8 =
  16. 16.3.3 × 3.6 =
  17. 17.0.52 × 1.4 =
  18. 18.4.5 × 0.37 =
  19. 19.2.7 × 3.7 =
  20. 20.2.1 × 0.36 =
  21. 21.5.6 × 0.37 =
  22. 22.0.37 × 3.6 =
  23. 23.7.2 × 1.8 =
  24. 24.0.57 × 1.7 =
  25. 25.0.11 × 0.2 =
  26. 26.0.51 × 3.1 =
  27. 27.1.3 × 2.3 =
  28. 28.2.1 × 0.36 =
  29. 29.0.07 × 2.2 =
  30. 30.1.3 × 2.1 =
  31. 31.0.69 × 3.2 =
  32. 32.5.1 × 3.1 =
  33. 33.8.3 × 0.6 =
  34. 34.6.4 × 1.3 =
  35. 35.0.52 × 2.9 =
  36. 36.7.4 × 0.12 =
  37. 37.5.1 × 3.1 =
  38. 38.4.1 × 0.26 =
  39. 39.0.23 × 3.6 =
  40. 40.5.9 × 0.29 =

Answer key

  1. 1.207
  2. 9.23
  3. 0.342
  4. 12.96
  5. 0.368
  6. 1.258
  7. 1.68
  8. 1.035
  9. 2.457
  10. 0.522
  11. 1.26
  12. 5.5
  13. 0.077
  14. 15.34
  15. 0.468
  16. 11.88
  17. 0.728
  18. 1.665
  19. 9.99
  20. 0.756
  21. 2.072
  22. 1.332
  23. 12.96
  24. 0.969
  25. 0.022
  26. 1.581
  27. 2.99
  28. 0.756
  29. 0.154
  30. 2.73
  31. 2.208
  32. 15.81
  33. 4.98
  34. 8.32
  35. 1.508
  36. 0.888
  37. 15.81
  38. 1.066
  39. 0.828
  40. 1.711

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