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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 56 · 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. 1.0.15 × 2.1 =
  2. 2.0.9 × 1.1 =
  3. 3.0.27 × 0.2 =
  4. 4.7.3 × 2.4 =
  5. 5.9.1 × 0.3 =
  6. 6.3.2 × 0.18 =
  7. 7.0.18 × 1.3 =
  8. 8.4.8 × 0.31 =
  9. 9.0.36 × 1.1 =
  10. 10.0.71 × 1.8 =
  11. 11.0.62 × 1.1 =
  12. 12.0.21 × 1.8 =
  13. 13.8.4 × 0.18 =
  14. 14.8.4 × 0.07 =
  15. 15.0.46 × 1.3 =
  16. 16.0.77 × 2.2 =
  17. 17.5.7 × 3.9 =
  18. 18.0.6 × 3.4 =
  19. 19.2.7 × 0.03 =
  20. 20.0.84 × 0.9 =
  21. 21.7.8 × 0.16 =
  22. 22.0.25 × 3.4 =
  23. 23.6.7 × 0.8 =
  24. 24.1.4 × 0.34 =
  25. 25.8.2 × 0.19 =
  26. 26.0.9 × 0.24 =
  27. 27.7.9 × 3.9 =
  28. 28.0.25 × 1.3 =
  29. 29.5.8 × 3.4 =
  30. 30.0.3 × 2.9 =
  31. 31.0.5 × 2.2 =
  32. 32.0.34 × 2.3 =
  33. 33.0.02 × 1.5 =
  34. 34.1.7 × 0.09 =
  35. 35.7.5 × 0.18 =
  36. 36.0.83 × 2.9 =
  37. 37.7.1 × 2.6 =
  38. 38.0.02 × 3.8 =
  39. 39.9.1 × 0.38 =
  40. 40.3.3 × 1.1 =

Answer key

  1. 0.315
  2. 0.99
  3. 0.054
  4. 17.52
  5. 2.73
  6. 0.576
  7. 0.234
  8. 1.488
  9. 0.396
  10. 1.278
  11. 0.682
  12. 0.378
  13. 1.512
  14. 0.588
  15. 0.598
  16. 1.694
  17. 22.23
  18. 2.04
  19. 0.081
  20. 0.756
  21. 1.248
  22. 0.85
  23. 5.36
  24. 0.476
  25. 1.558
  26. 0.216
  27. 30.81
  28. 0.325
  29. 19.72
  30. 0.87
  31. 1.1
  32. 0.782
  33. 0.03
  34. 0.153
  35. 1.35
  36. 2.407
  37. 18.46
  38. 0.076
  39. 3.458
  40. 3.63

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