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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 908 · 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. 1.2.7 × 0.12 =
  2. 2.8.5 × 0.11 =
  3. 3.0.89 × 0.3 =
  4. 4.0.74 × 3.8 =
  5. 5.0.83 × 1.7 =
  6. 6.3.7 × 0.3 =
  7. 7.9.2 × 3.4 =
  8. 8.7.3 × 1.2 =
  9. 9.6.7 × 0.09 =
  10. 10.0.42 × 3.4 =
  11. 11.0.18 × 2.1 =
  12. 12.0.76 × 2.4 =
  13. 13.0.52 × 2.1 =
  14. 14.0.38 × 3.4 =
  15. 15.5.9 × 0.11 =
  16. 16.0.31 × 1.7 =
  17. 17.0.73 × 3.9 =
  18. 18.9.9 × 0.06 =
  19. 19.2.7 × 0.04 =
  20. 20.5.7 × 1.6 =
  21. 21.1.3 × 0.2 =
  22. 22.0.07 × 3.5 =
  23. 23.8.2 × 2.1 =
  24. 24.1.2 × 0.09 =
  25. 25.0.58 × 0.8 =
  26. 26.0.27 × 1.2 =
  27. 27.0.7 × 1.1 =
  28. 28.0.79 × 3.2 =
  29. 29.5.2 × 2.2 =
  30. 30.2.7 × 0.11 =
  31. 31.0.53 × 3.6 =
  32. 32.5.5 × 1.7 =
  33. 33.0.12 × 1.2 =
  34. 34.2.3 × 0.31 =
  35. 35.0.73 × 1.6 =
  36. 36.4.6 × 0.11 =
  37. 37.0.25 × 0.4 =
  38. 38.6.7 × 0.35 =
  39. 39.0.66 × 2.1 =
  40. 40.4.2 × 0.02 =

Answer key

  1. 0.324
  2. 0.935
  3. 0.267
  4. 2.812
  5. 1.411
  6. 1.11
  7. 31.28
  8. 8.76
  9. 0.603
  10. 1.428
  11. 0.378
  12. 1.824
  13. 1.092
  14. 1.292
  15. 0.649
  16. 0.527
  17. 2.847
  18. 0.594
  19. 0.108
  20. 9.12
  21. 0.26
  22. 0.245
  23. 17.22
  24. 0.108
  25. 0.464
  26. 0.324
  27. 0.77
  28. 2.528
  29. 11.44
  30. 0.297
  31. 1.908
  32. 9.35
  33. 0.144
  34. 0.713
  35. 1.168
  36. 0.506
  37. 0.1
  38. 2.345
  39. 1.386
  40. 0.084

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