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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 966 · 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. 1.0.99 × 1.8 =
  2. 2.5.1 × 0.35 =
  3. 3.5.2 × 1.7 =
  4. 4.0.2 × 0.18 =
  5. 5.0.27 × 3.6 =
  6. 6.4.2 × 0.5 =
  7. 7.0.51 × 3.9 =
  8. 8.6.1 × 3.9 =
  9. 9.0.79 × 3.9 =
  10. 10.6.6 × 3.9 =
  11. 11.0.5 × 0.23 =
  12. 12.6.6 × 2.1 =
  13. 13.4.6 × 0.8 =
  14. 14.0.33 × 2.5 =
  15. 15.5.6 × 0.11 =
  16. 16.1.3 × 0.4 =
  17. 17.9.2 × 0.37 =
  18. 18.3.2 × 0.2 =
  19. 19.0.66 × 1.7 =
  20. 20.0.75 × 2.1 =
  21. 21.0.54 × 2.3 =
  22. 22.0.6 × 3.3 =
  23. 23.7.7 × 0.37 =
  24. 24.3.2 × 0.21 =
  25. 25.0.83 × 3.4 =
  26. 26.0.16 × 1.3 =
  27. 27.0.31 × 1.5 =
  28. 28.5.9 × 0.07 =
  29. 29.0.61 × 2.1 =
  30. 30.4.3 × 0.9 =
  31. 31.0.58 × 1.5 =
  32. 32.5.7 × 0.4 =
  33. 33.5.1 × 0.9 =
  34. 34.0.67 × 2.5 =
  35. 35.9.2 × 2.8 =
  36. 36.3.1 × 0.22 =
  37. 37.0.84 × 0.5 =
  38. 38.0.2 × 2.4 =
  39. 39.6.7 × 0.04 =
  40. 40.0.32 × 3.4 =

Answer key

  1. 1.782
  2. 1.785
  3. 8.84
  4. 0.036
  5. 0.972
  6. 2.1
  7. 1.989
  8. 23.79
  9. 3.081
  10. 25.74
  11. 0.115
  12. 13.86
  13. 3.68
  14. 0.825
  15. 0.616
  16. 0.52
  17. 3.404
  18. 0.64
  19. 1.122
  20. 1.575
  21. 1.242
  22. 1.98
  23. 2.849
  24. 0.672
  25. 2.822
  26. 0.208
  27. 0.465
  28. 0.413
  29. 1.281
  30. 3.87
  31. 0.87
  32. 2.28
  33. 4.59
  34. 1.675
  35. 25.76
  36. 0.682
  37. 0.42
  38. 0.48
  39. 0.268
  40. 1.088

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