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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 823 · 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 × 0.35 =
  2. 2.8.2 × 3.1 =
  3. 3.0.22 × 1.1 =
  4. 4.5.6 × 1.7 =
  5. 5.0.62 × 0.2 =
  6. 6.0.59 × 2.5 =
  7. 7.4.4 × 2.3 =
  8. 8.0.36 × 3.6 =
  9. 9.7.8 × 0.08 =
  10. 10.0.02 × 2.7 =
  11. 11.0.81 × 1.6 =
  12. 12.2.9 × 0.09 =
  13. 13.0.56 × 0.3 =
  14. 14.0.85 × 1.4 =
  15. 15.0.99 × 1.2 =
  16. 16.1.2 × 0.12 =
  17. 17.0.24 × 3.4 =
  18. 18.3.4 × 0.06 =
  19. 19.0.96 × 2.1 =
  20. 20.8.8 × 2.8 =
  21. 21.4.1 × 1.3 =
  22. 22.9.4 × 0.8 =
  23. 23.0.33 × 1.2 =
  24. 24.5.7 × 1.1 =
  25. 25.0.62 × 2.1 =
  26. 26.6.4 × 1.5 =
  27. 27.0.3 × 0.13 =
  28. 28.0.57 × 3.1 =
  29. 29.5.4 × 0.32 =
  30. 30.9.1 × 0.18 =
  31. 31.4.1 × 3.8 =
  32. 32.6.6 × 0.19 =
  33. 33.2.1 × 2.1 =
  34. 34.0.16 × 3.3 =
  35. 35.7.1 × 0.5 =
  36. 36.1.7 × 1.1 =
  37. 37.8.2 × 0.07 =
  38. 38.0.67 × 1.2 =
  39. 39.0.91 × 0.3 =
  40. 40.6.1 × 0.37 =

Answer key

  1. 2.485
  2. 25.42
  3. 0.242
  4. 9.52
  5. 0.124
  6. 1.475
  7. 10.12
  8. 1.296
  9. 0.624
  10. 0.054
  11. 1.296
  12. 0.261
  13. 0.168
  14. 1.19
  15. 1.188
  16. 0.144
  17. 0.816
  18. 0.204
  19. 2.016
  20. 24.64
  21. 5.33
  22. 7.52
  23. 0.396
  24. 6.27
  25. 1.302
  26. 9.6
  27. 0.039
  28. 1.767
  29. 1.728
  30. 1.638
  31. 15.58
  32. 1.254
  33. 4.41
  34. 0.528
  35. 3.55
  36. 1.87
  37. 0.574
  38. 0.804
  39. 0.273
  40. 2.257

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