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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 904 · 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. 1.0.75 × 0.4 =
  2. 2.4.6 × 3.6 =
  3. 3.3.5 × 3.5 =
  4. 4.0.36 × 1.5 =
  5. 5.0.78 × 0.8 =
  6. 6.2.5 × 3.8 =
  7. 7.6.2 × 3.1 =
  8. 8.0.44 × 3.6 =
  9. 9.3.3 × 3.1 =
  10. 10.4.1 × 0.09 =
  11. 11.0.31 × 0.3 =
  12. 12.0.95 × 3.4 =
  13. 13.0.61 × 2.7 =
  14. 14.0.4 × 0.09 =
  15. 15.1.1 × 3.2 =
  16. 16.0.36 × 2.7 =
  17. 17.2.9 × 3.1 =
  18. 18.4.1 × 0.32 =
  19. 19.0.36 × 1.8 =
  20. 20.7.1 × 0.05 =
  21. 21.0.16 × 3.1 =
  22. 22.0.98 × 2.8 =
  23. 23.8.7 × 0.11 =
  24. 24.0.42 × 1.8 =
  25. 25.7.3 × 3.4 =
  26. 26.0.91 × 0.2 =
  27. 27.1.9 × 0.03 =
  28. 28.9.3 × 1.8 =
  29. 29.0.08 × 0.5 =
  30. 30.3.2 × 2.1 =
  31. 31.0.59 × 1.4 =
  32. 32.0.41 × 2.1 =
  33. 33.0.49 × 2.3 =
  34. 34.0.75 × 3.1 =
  35. 35.0.67 × 3.2 =
  36. 36.9.1 × 1.1 =
  37. 37.6.2 × 2.6 =
  38. 38.0.93 × 2.7 =
  39. 39.0.21 × 2.3 =
  40. 40.0.97 × 1.1 =

Answer key

  1. 0.3
  2. 16.56
  3. 12.25
  4. 0.54
  5. 0.624
  6. 9.5
  7. 19.22
  8. 1.584
  9. 10.23
  10. 0.369
  11. 0.093
  12. 3.23
  13. 1.647
  14. 0.036
  15. 3.52
  16. 0.972
  17. 8.99
  18. 1.312
  19. 0.648
  20. 0.355
  21. 0.496
  22. 2.744
  23. 0.957
  24. 0.756
  25. 24.82
  26. 0.182
  27. 0.057
  28. 16.74
  29. 0.04
  30. 6.72
  31. 0.826
  32. 0.861
  33. 1.127
  34. 2.325
  35. 2.144
  36. 10.01
  37. 16.12
  38. 2.511
  39. 0.483
  40. 1.067

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