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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 922 · 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. 1.0.21 × 2.5 =
  2. 2.4.5 × 1.5 =
  3. 3.8.3 × 3.2 =
  4. 4.0.52 × 0.4 =
  5. 5.0.11 × 3.3 =
  6. 6.0.29 × 0.4 =
  7. 7.0.4 × 0.27 =
  8. 8.3.2 × 3.2 =
  9. 9.0.6 × 0.26 =
  10. 10.0.3 × 0.18 =
  11. 11.7.4 × 0.23 =
  12. 12.0.22 × 0.3 =
  13. 13.6.1 × 0.25 =
  14. 14.0.53 × 0.8 =
  15. 15.7.5 × 0.28 =
  16. 16.2.7 × 1.9 =
  17. 17.4.8 × 0.7 =
  18. 18.0.27 × 0.2 =
  19. 19.0.5 × 0.37 =
  20. 20.0.04 × 1.6 =
  21. 21.0.19 × 3.1 =
  22. 22.0.04 × 0.6 =
  23. 23.0.34 × 3.5 =
  24. 24.0.66 × 1.1 =
  25. 25.0.37 × 1.2 =
  26. 26.0.13 × 2.6 =
  27. 27.9.9 × 1.5 =
  28. 28.1.9 × 0.31 =
  29. 29.0.22 × 1.5 =
  30. 30.0.21 × 1.6 =
  31. 31.3.8 × 1.7 =
  32. 32.0.91 × 3.5 =
  33. 33.8.2 × 0.09 =
  34. 34.0.71 × 2.8 =
  35. 35.1.5 × 3.6 =
  36. 36.2.6 × 2.3 =
  37. 37.0.99 × 2.3 =
  38. 38.0.89 × 1.7 =
  39. 39.9.2 × 0.39 =
  40. 40.3.8 × 0.33 =

Answer key

  1. 0.525
  2. 6.75
  3. 26.56
  4. 0.208
  5. 0.363
  6. 0.116
  7. 0.108
  8. 10.24
  9. 0.156
  10. 0.054
  11. 1.702
  12. 0.066
  13. 1.525
  14. 0.424
  15. 2.1
  16. 5.13
  17. 3.36
  18. 0.054
  19. 0.185
  20. 0.064
  21. 0.589
  22. 0.024
  23. 1.19
  24. 0.726
  25. 0.444
  26. 0.338
  27. 14.85
  28. 0.589
  29. 0.33
  30. 0.336
  31. 6.46
  32. 3.185
  33. 0.738
  34. 1.988
  35. 5.4
  36. 5.98
  37. 2.277
  38. 1.513
  39. 3.588
  40. 1.254

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