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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 369 · 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. 1.1.5 × 2.4 =
  2. 2.2.3 × 0.38 =
  3. 3.0.6 × 0.34 =
  4. 4.0.88 × 0.9 =
  5. 5.8.3 × 0.26 =
  6. 6.0.28 × 1.1 =
  7. 7.0.25 × 1.2 =
  8. 8.9.8 × 1.3 =
  9. 9.6.8 × 0.7 =
  10. 10.0.71 × 3.3 =
  11. 11.0.59 × 2.2 =
  12. 12.9.1 × 0.3 =
  13. 13.0.91 × 0.7 =
  14. 14.0.67 × 1.1 =
  15. 15.5.6 × 0.5 =
  16. 16.6.8 × 0.23 =
  17. 17.0.28 × 0.4 =
  18. 18.0.33 × 0.4 =
  19. 19.3.5 × 0.27 =
  20. 20.0.37 × 2.1 =
  21. 21.2.5 × 0.11 =
  22. 22.0.55 × 2.5 =
  23. 23.7.7 × 3.8 =
  24. 24.0.46 × 0.5 =
  25. 25.0.09 × 0.6 =
  26. 26.0.11 × 1.1 =
  27. 27.0.14 × 0.8 =
  28. 28.8.2 × 0.06 =
  29. 29.0.2 × 0.26 =
  30. 30.0.31 × 0.3 =
  31. 31.6.5 × 1.6 =
  32. 32.1.2 × 0.08 =
  33. 33.4.1 × 3.5 =
  34. 34.8.9 × 0.29 =
  35. 35.0.23 × 2.1 =
  36. 36.1.9 × 0.36 =
  37. 37.0.47 × 1.7 =
  38. 38.3.5 × 0.38 =
  39. 39.0.8 × 0.13 =
  40. 40.0.08 × 1.2 =

Answer key

  1. 3.6
  2. 0.874
  3. 0.204
  4. 0.792
  5. 2.158
  6. 0.308
  7. 0.3
  8. 12.74
  9. 4.76
  10. 2.343
  11. 1.298
  12. 2.73
  13. 0.637
  14. 0.737
  15. 2.8
  16. 1.564
  17. 0.112
  18. 0.132
  19. 0.945
  20. 0.777
  21. 0.275
  22. 1.375
  23. 29.26
  24. 0.23
  25. 0.054
  26. 0.121
  27. 0.112
  28. 0.492
  29. 0.052
  30. 0.093
  31. 10.4
  32. 0.096
  33. 14.35
  34. 2.581
  35. 0.483
  36. 0.684
  37. 0.799
  38. 1.33
  39. 0.104
  40. 0.096

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