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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 837 · 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. 1.3.1 × 3.6 =
  2. 2.0.41 × 2.1 =
  3. 3.0.24 × 2.1 =
  4. 4.0.66 × 2.1 =
  5. 5.0.7 × 0.17 =
  6. 6.0.44 × 2.7 =
  7. 7.0.09 × 0.2 =
  8. 8.2.1 × 0.05 =
  9. 9.0.89 × 0.6 =
  10. 10.1.7 × 2.3 =
  11. 11.5.5 × 2.5 =
  12. 12.6.5 × 2.7 =
  13. 13.8.5 × 0.09 =
  14. 14.6.4 × 0.09 =
  15. 15.0.35 × 0.5 =
  16. 16.7.2 × 0.34 =
  17. 17.2.8 × 0.02 =
  18. 18.6.8 × 1.9 =
  19. 19.1.1 × 3.2 =
  20. 20.0.74 × 1.6 =
  21. 21.8.6 × 0.9 =
  22. 22.0.17 × 2.9 =
  23. 23.1.3 × 1.7 =
  24. 24.0.02 × 3.1 =
  25. 25.0.21 × 3.5 =
  26. 26.4.2 × 0.39 =
  27. 27.0.06 × 1.9 =
  28. 28.2.9 × 3.1 =
  29. 29.0.32 × 1.1 =
  30. 30.0.36 × 2.4 =
  31. 31.4.4 × 0.15 =
  32. 32.0.64 × 3.4 =
  33. 33.0.51 × 1.9 =
  34. 34.2.7 × 0.16 =
  35. 35.0.87 × 0.5 =
  36. 36.6.1 × 0.08 =
  37. 37.0.91 × 0.7 =
  38. 38.4.3 × 0.4 =
  39. 39.0.31 × 3.3 =
  40. 40.0.45 × 2.5 =

Answer key

  1. 11.16
  2. 0.861
  3. 0.504
  4. 1.386
  5. 0.119
  6. 1.188
  7. 0.018
  8. 0.105
  9. 0.534
  10. 3.91
  11. 13.75
  12. 17.55
  13. 0.765
  14. 0.576
  15. 0.175
  16. 2.448
  17. 0.056
  18. 12.92
  19. 3.52
  20. 1.184
  21. 7.74
  22. 0.493
  23. 2.21
  24. 0.062
  25. 0.735
  26. 1.638
  27. 0.114
  28. 8.99
  29. 0.352
  30. 0.864
  31. 0.66
  32. 2.176
  33. 0.969
  34. 0.432
  35. 0.435
  36. 0.488
  37. 0.637
  38. 1.72
  39. 1.023
  40. 1.125

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