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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 965 · 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. 1.7.2 × 1.8 =
  2. 2.0.16 × 3.5 =
  3. 3.0.84 × 0.3 =
  4. 4.0.82 × 0.5 =
  5. 5.7.3 × 0.08 =
  6. 6.4.7 × 0.23 =
  7. 7.8.8 × 0.4 =
  8. 8.3.3 × 0.09 =
  9. 9.0.66 × 2.1 =
  10. 10.0.31 × 1.7 =
  11. 11.0.39 × 0.9 =
  12. 12.0.31 × 3.3 =
  13. 13.0.17 × 1.2 =
  14. 14.0.83 × 2.3 =
  15. 15.0.18 × 3.8 =
  16. 16.0.29 × 2.2 =
  17. 17.8.3 × 0.18 =
  18. 18.0.56 × 0.3 =
  19. 19.0.81 × 2.1 =
  20. 20.2.9 × 3.8 =
  21. 21.3.7 × 0.05 =
  22. 22.0.25 × 1.2 =
  23. 23.4.8 × 1.9 =
  24. 24.9.6 × 1.4 =
  25. 25.0.17 × 0.7 =
  26. 26.8.1 × 3.5 =
  27. 27.1.1 × 2.1 =
  28. 28.6.3 × 0.08 =
  29. 29.0.79 × 1.3 =
  30. 30.0.58 × 3.1 =
  31. 31.0.5 × 0.12 =
  32. 32.0.32 × 2.2 =
  33. 33.0.27 × 1.2 =
  34. 34.0.75 × 1.3 =
  35. 35.9.7 × 1.1 =
  36. 36.0.21 × 3.6 =
  37. 37.0.25 × 0.7 =
  38. 38.3.6 × 3.7 =
  39. 39.6.6 × 3.5 =
  40. 40.0.64 × 2.1 =

Answer key

  1. 12.96
  2. 0.56
  3. 0.252
  4. 0.41
  5. 0.584
  6. 1.081
  7. 3.52
  8. 0.297
  9. 1.386
  10. 0.527
  11. 0.351
  12. 1.023
  13. 0.204
  14. 1.909
  15. 0.684
  16. 0.638
  17. 1.494
  18. 0.168
  19. 1.701
  20. 11.02
  21. 0.185
  22. 0.3
  23. 9.12
  24. 13.44
  25. 0.119
  26. 28.35
  27. 2.31
  28. 0.504
  29. 1.027
  30. 1.798
  31. 0.06
  32. 0.704
  33. 0.324
  34. 0.975
  35. 10.67
  36. 0.756
  37. 0.175
  38. 13.32
  39. 23.1
  40. 1.344

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