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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 867 · 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. 1.0.97 × 2.2 =
  2. 2.0.46 × 3.1 =
  3. 3.1.8 × 0.8 =
  4. 4.0.11 × 1.3 =
  5. 5.1.2 × 0.31 =
  6. 6.2.5 × 2.6 =
  7. 7.0.5 × 0.22 =
  8. 8.9.8 × 3.6 =
  9. 9.4.9 × 1.7 =
  10. 10.0.28 × 2.1 =
  11. 11.0.69 × 0.6 =
  12. 12.0.81 × 2.7 =
  13. 13.0.24 × 3.3 =
  14. 14.2.1 × 0.38 =
  15. 15.0.81 × 1.9 =
  16. 16.0.07 × 2.1 =
  17. 17.0.25 × 2.3 =
  18. 18.9.9 × 0.31 =
  19. 19.7.6 × 1.5 =
  20. 20.8.6 × 0.23 =
  21. 21.0.51 × 3.7 =
  22. 22.0.21 × 0.4 =
  23. 23.0.24 × 2.4 =
  24. 24.6.7 × 0.18 =
  25. 25.0.75 × 1.9 =
  26. 26.9.5 × 0.09 =
  27. 27.2.7 × 0.3 =
  28. 28.2.5 × 3.1 =
  29. 29.0.02 × 3.6 =
  30. 30.0.06 × 3.5 =
  31. 31.9.3 × 3.6 =
  32. 32.0.09 × 3.8 =
  33. 33.7.1 × 3.9 =
  34. 34.0.81 × 0.8 =
  35. 35.0.06 × 2.5 =
  36. 36.8.4 × 3.1 =
  37. 37.9.5 × 0.11 =
  38. 38.5.8 × 3.5 =
  39. 39.2.8 × 2.7 =
  40. 40.9.7 × 0.29 =

Answer key

  1. 2.134
  2. 1.426
  3. 1.44
  4. 0.143
  5. 0.372
  6. 6.5
  7. 0.11
  8. 35.28
  9. 8.33
  10. 0.588
  11. 0.414
  12. 2.187
  13. 0.792
  14. 0.798
  15. 1.539
  16. 0.147
  17. 0.575
  18. 3.069
  19. 11.4
  20. 1.978
  21. 1.887
  22. 0.084
  23. 0.576
  24. 1.206
  25. 1.425
  26. 0.855
  27. 0.81
  28. 7.75
  29. 0.072
  30. 0.21
  31. 33.48
  32. 0.342
  33. 27.69
  34. 0.648
  35. 0.15
  36. 26.04
  37. 1.045
  38. 20.3
  39. 7.56
  40. 2.813

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