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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 937 · 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. 1.0.31 × 3.6 =
  2. 2.0.28 × 3.7 =
  3. 3.6.9 × 0.12 =
  4. 4.0.7 × 1.3 =
  5. 5.0.18 × 1.1 =
  6. 6.2.5 × 0.27 =
  7. 7.0.43 × 0.7 =
  8. 8.0.81 × 1.8 =
  9. 9.0.81 × 1.7 =
  10. 10.0.14 × 0.3 =
  11. 11.2.6 × 0.28 =
  12. 12.0.82 × 1.1 =
  13. 13.0.3 × 0.23 =
  14. 14.0.36 × 3.9 =
  15. 15.4.6 × 0.22 =
  16. 16.0.71 × 1.1 =
  17. 17.8.1 × 0.17 =
  18. 18.3.1 × 0.11 =
  19. 19.0.3 × 1.4 =
  20. 20.6.9 × 0.06 =
  21. 21.0.3 × 0.21 =
  22. 22.8.1 × 3.2 =
  23. 23.0.3 × 0.38 =
  24. 24.3.1 × 0.25 =
  25. 25.6.1 × 2.9 =
  26. 26.0.7 × 0.15 =
  27. 27.0.66 × 3.5 =
  28. 28.2.2 × 1.7 =
  29. 29.0.25 × 0.2 =
  30. 30.0.32 × 3.8 =
  31. 31.0.77 × 0.7 =
  32. 32.2.8 × 0.22 =
  33. 33.0.97 × 0.8 =
  34. 34.7.5 × 1.4 =
  35. 35.0.36 × 2.5 =
  36. 36.6.1 × 3.4 =
  37. 37.4.7 × 2.9 =
  38. 38.0.51 × 1.3 =
  39. 39.6.4 × 3.8 =
  40. 40.0.63 × 3.4 =

Answer key

  1. 1.116
  2. 1.036
  3. 0.828
  4. 0.91
  5. 0.198
  6. 0.675
  7. 0.301
  8. 1.458
  9. 1.377
  10. 0.042
  11. 0.728
  12. 0.902
  13. 0.069
  14. 1.404
  15. 1.012
  16. 0.781
  17. 1.377
  18. 0.341
  19. 0.42
  20. 0.414
  21. 0.063
  22. 25.92
  23. 0.114
  24. 0.775
  25. 17.69
  26. 0.105
  27. 2.31
  28. 3.74
  29. 0.05
  30. 1.216
  31. 0.539
  32. 0.616
  33. 0.776
  34. 10.5
  35. 0.9
  36. 20.74
  37. 13.63
  38. 0.663
  39. 24.32
  40. 2.142

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