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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 165 · 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. 1.0.45 × 2.8 =
  2. 2.0.96 × 3.8 =
  3. 3.0.83 × 2.9 =
  4. 4.0.22 × 2.6 =
  5. 5.0.17 × 2.2 =
  6. 6.0.74 × 2.2 =
  7. 7.0.49 × 3.7 =
  8. 8.2.1 × 0.7 =
  9. 9.9.3 × 1.2 =
  10. 10.0.25 × 2.1 =
  11. 11.6.4 × 0.35 =
  12. 12.0.88 × 1.2 =
  13. 13.3.1 × 0.28 =
  14. 14.0.38 × 0.5 =
  15. 15.7.5 × 0.9 =
  16. 16.0.44 × 1.9 =
  17. 17.0.25 × 1.5 =
  18. 18.0.77 × 3.5 =
  19. 19.0.93 × 3.3 =
  20. 20.4.6 × 0.09 =
  21. 21.0.33 × 0.3 =
  22. 22.0.56 × 1.1 =
  23. 23.0.99 × 1.1 =
  24. 24.9.1 × 2.9 =
  25. 25.2.5 × 1.6 =
  26. 26.9.5 × 1.7 =
  27. 27.5.7 × 0.6 =
  28. 28.0.96 × 0.8 =
  29. 29.0.24 × 2.1 =
  30. 30.0.03 × 0.8 =
  31. 31.8.1 × 0.27 =
  32. 32.4.8 × 0.5 =
  33. 33.0.96 × 3.5 =
  34. 34.6.8 × 0.31 =
  35. 35.0.15 × 2.8 =
  36. 36.0.6 × 0.39 =
  37. 37.0.56 × 1.6 =
  38. 38.0.28 × 1.1 =
  39. 39.0.09 × 1.2 =
  40. 40.0.16 × 1.2 =

Answer key

  1. 1.26
  2. 3.648
  3. 2.407
  4. 0.572
  5. 0.374
  6. 1.628
  7. 1.813
  8. 1.47
  9. 11.16
  10. 0.525
  11. 2.24
  12. 1.056
  13. 0.868
  14. 0.19
  15. 6.75
  16. 0.836
  17. 0.375
  18. 2.695
  19. 3.069
  20. 0.414
  21. 0.099
  22. 0.616
  23. 1.089
  24. 26.39
  25. 4
  26. 16.15
  27. 3.42
  28. 0.768
  29. 0.504
  30. 0.024
  31. 2.187
  32. 2.4
  33. 3.36
  34. 2.108
  35. 0.42
  36. 0.234
  37. 0.896
  38. 0.308
  39. 0.108
  40. 0.192

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