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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 997 · 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. 1.0.75 × 0.3 =
  2. 2.0.88 × 1.2 =
  3. 3.0.51 × 0.2 =
  4. 4.3.3 × 0.36 =
  5. 5.0.62 × 2.1 =
  6. 6.1.4 × 2.4 =
  7. 7.0.52 × 0.5 =
  8. 8.1.6 × 0.03 =
  9. 9.0.21 × 3.8 =
  10. 10.7.4 × 1.1 =
  11. 11.7.2 × 0.25 =
  12. 12.4.7 × 0.13 =
  13. 13.1.1 × 3.6 =
  14. 14.0.23 × 0.9 =
  15. 15.0.6 × 0.11 =
  16. 16.1.6 × 0.3 =
  17. 17.9.6 × 0.23 =
  18. 18.2.3 × 0.05 =
  19. 19.4.1 × 0.8 =
  20. 20.9.1 × 3.1 =
  21. 21.0.13 × 3.8 =
  22. 22.0.43 × 1.6 =
  23. 23.0.14 × 2.1 =
  24. 24.9.8 × 0.04 =
  25. 25.3.7 × 0.25 =
  26. 26.2.2 × 1.8 =
  27. 27.5.1 × 3.3 =
  28. 28.6.5 × 2.4 =
  29. 29.0.77 × 1.6 =
  30. 30.0.71 × 0.3 =
  31. 31.4.6 × 0.4 =
  32. 32.0.74 × 2.2 =
  33. 33.0.32 × 0.8 =
  34. 34.0.81 × 1.2 =
  35. 35.7.4 × 0.11 =
  36. 36.1.4 × 1.9 =
  37. 37.1.1 × 0.18 =
  38. 38.0.81 × 0.2 =
  39. 39.5.8 × 0.08 =
  40. 40.0.57 × 2.3 =

Answer key

  1. 0.225
  2. 1.056
  3. 0.102
  4. 1.188
  5. 1.302
  6. 3.36
  7. 0.26
  8. 0.048
  9. 0.798
  10. 8.14
  11. 1.8
  12. 0.611
  13. 3.96
  14. 0.207
  15. 0.066
  16. 0.48
  17. 2.208
  18. 0.115
  19. 3.28
  20. 28.21
  21. 0.494
  22. 0.688
  23. 0.294
  24. 0.392
  25. 0.925
  26. 3.96
  27. 16.83
  28. 15.6
  29. 1.232
  30. 0.213
  31. 1.84
  32. 1.628
  33. 0.256
  34. 0.972
  35. 0.814
  36. 2.66
  37. 0.198
  38. 0.162
  39. 0.464
  40. 1.311

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