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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 849 · 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. 1.9.3 × 2.7 =
  2. 2.0.46 × 1.3 =
  3. 3.0.05 × 2.3 =
  4. 4.3.6 × 0.09 =
  5. 5.2.4 × 1.6 =
  6. 6.0.95 × 2.1 =
  7. 7.0.85 × 2.7 =
  8. 8.5.1 × 1.1 =
  9. 9.0.81 × 2.5 =
  10. 10.0.59 × 2.1 =
  11. 11.0.71 × 3.8 =
  12. 12.8.8 × 0.24 =
  13. 13.8.4 × 0.2 =
  14. 14.0.03 × 1.3 =
  15. 15.0.59 × 0.2 =
  16. 16.6.3 × 0.13 =
  17. 17.2.5 × 3.6 =
  18. 18.8.8 × 0.13 =
  19. 19.6.6 × 1.4 =
  20. 20.0.14 × 1.3 =
  21. 21.0.27 × 1.4 =
  22. 22.0.28 × 1.7 =
  23. 23.1.8 × 0.11 =
  24. 24.0.75 × 2.1 =
  25. 25.0.31 × 1.5 =
  26. 26.0.16 × 3.4 =
  27. 27.4.1 × 1.7 =
  28. 28.1.1 × 3.9 =
  29. 29.2.1 × 2.7 =
  30. 30.2.7 × 1.1 =
  31. 31.0.09 × 1.2 =
  32. 32.0.63 × 3.1 =
  33. 33.0.48 × 2.3 =
  34. 34.0.7 × 0.21 =
  35. 35.9.7 × 2.9 =
  36. 36.5.4 × 1.4 =
  37. 37.0.16 × 1.8 =
  38. 38.3.1 × 0.5 =
  39. 39.0.13 × 1.1 =
  40. 40.0.24 × 3.6 =

Answer key

  1. 25.11
  2. 0.598
  3. 0.115
  4. 0.324
  5. 3.84
  6. 1.995
  7. 2.295
  8. 5.61
  9. 2.025
  10. 1.239
  11. 2.698
  12. 2.112
  13. 1.68
  14. 0.039
  15. 0.118
  16. 0.819
  17. 9
  18. 1.144
  19. 9.24
  20. 0.182
  21. 0.378
  22. 0.476
  23. 0.198
  24. 1.575
  25. 0.465
  26. 0.544
  27. 6.97
  28. 4.29
  29. 5.67
  30. 2.97
  31. 0.108
  32. 1.953
  33. 1.104
  34. 0.147
  35. 28.13
  36. 7.56
  37. 0.288
  38. 1.55
  39. 0.143
  40. 0.864

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