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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 832 · 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. 1.7.7 × 1.6 =
  2. 2.0.88 × 1.2 =
  3. 3.3.2 × 0.03 =
  4. 4.0.9 × 0.12 =
  5. 5.0.53 × 2.1 =
  6. 6.6.1 × 1.1 =
  7. 7.2.3 × 1.3 =
  8. 8.0.88 × 3.5 =
  9. 9.0.78 × 1.5 =
  10. 10.0.49 × 2.3 =
  11. 11.7.1 × 0.06 =
  12. 12.5.6 × 0.05 =
  13. 13.0.91 × 3.1 =
  14. 14.9.2 × 1.3 =
  15. 15.1.7 × 0.38 =
  16. 16.9.5 × 0.31 =
  17. 17.8.2 × 3.3 =
  18. 18.6.1 × 2.3 =
  19. 19.2.5 × 0.36 =
  20. 20.8.1 × 0.21 =
  21. 21.0.45 × 1.2 =
  22. 22.0.31 × 1.8 =
  23. 23.1.6 × 0.26 =
  24. 24.8.3 × 0.36 =
  25. 25.4.4 × 1.1 =
  26. 26.0.91 × 2.9 =
  27. 27.0.9 × 1.7 =
  28. 28.6.1 × 1.1 =
  29. 29.0.13 × 2.5 =
  30. 30.8.7 × 0.38 =
  31. 31.0.66 × 3.4 =
  32. 32.0.9 × 3.6 =
  33. 33.0.17 × 3.3 =
  34. 34.0.18 × 2.9 =
  35. 35.8.1 × 3.8 =
  36. 36.7.1 × 2.9 =
  37. 37.0.84 × 2.3 =
  38. 38.0.72 × 0.7 =
  39. 39.0.67 × 1.9 =
  40. 40.9.9 × 0.4 =

Answer key

  1. 12.32
  2. 1.056
  3. 0.096
  4. 0.108
  5. 1.113
  6. 6.71
  7. 2.99
  8. 3.08
  9. 1.17
  10. 1.127
  11. 0.426
  12. 0.28
  13. 2.821
  14. 11.96
  15. 0.646
  16. 2.945
  17. 27.06
  18. 14.03
  19. 0.9
  20. 1.701
  21. 0.54
  22. 0.558
  23. 0.416
  24. 2.988
  25. 4.84
  26. 2.639
  27. 1.53
  28. 6.71
  29. 0.325
  30. 3.306
  31. 2.244
  32. 3.24
  33. 0.561
  34. 0.522
  35. 30.78
  36. 20.59
  37. 1.932
  38. 0.504
  39. 1.273
  40. 3.96

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