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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 604 · 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. 1.0.68 × 3.9 =
  2. 2.0.71 × 0.6 =
  3. 3.0.03 × 1.1 =
  4. 4.0.41 × 0.8 =
  5. 5.5.8 × 0.39 =
  6. 6.0.39 × 2.7 =
  7. 7.0.88 × 3.2 =
  8. 8.0.81 × 3.8 =
  9. 9.5.1 × 0.34 =
  10. 10.0.86 × 1.7 =
  11. 11.1.1 × 3.7 =
  12. 12.7.6 × 1.6 =
  13. 13.3.3 × 0.4 =
  14. 14.3.3 × 2.8 =
  15. 15.0.54 × 0.9 =
  16. 16.0.26 × 1.1 =
  17. 17.0.31 × 3.9 =
  18. 18.0.22 × 1.1 =
  19. 19.1.1 × 1.7 =
  20. 20.0.18 × 1.3 =
  21. 21.0.91 × 3.5 =
  22. 22.8.7 × 3.8 =
  23. 23.5.4 × 0.34 =
  24. 24.0.81 × 3.5 =
  25. 25.1.1 × 0.3 =
  26. 26.9.4 × 3.9 =
  27. 27.1.1 × 3.1 =
  28. 28.7.8 × 0.23 =
  29. 29.7.9 × 3.7 =
  30. 30.4.3 × 2.6 =
  31. 31.0.72 × 1.2 =
  32. 32.1.5 × 0.12 =
  33. 33.0.71 × 2.4 =
  34. 34.0.11 × 1.1 =
  35. 35.0.26 × 1.6 =
  36. 36.5.1 × 2.1 =
  37. 37.9.1 × 1.6 =
  38. 38.0.24 × 0.9 =
  39. 39.2.1 × 2.7 =
  40. 40.5.8 × 0.12 =

Answer key

  1. 2.652
  2. 0.426
  3. 0.033
  4. 0.328
  5. 2.262
  6. 1.053
  7. 2.816
  8. 3.078
  9. 1.734
  10. 1.462
  11. 4.07
  12. 12.16
  13. 1.32
  14. 9.24
  15. 0.486
  16. 0.286
  17. 1.209
  18. 0.242
  19. 1.87
  20. 0.234
  21. 3.185
  22. 33.06
  23. 1.836
  24. 2.835
  25. 0.33
  26. 36.66
  27. 3.41
  28. 1.794
  29. 29.23
  30. 11.18
  31. 0.864
  32. 0.18
  33. 1.704
  34. 0.121
  35. 0.416
  36. 10.71
  37. 14.56
  38. 0.216
  39. 5.67
  40. 0.696

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