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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 734 · 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. 1.0.11 × 2.8 =
  2. 2.0.12 × 0.2 =
  3. 3.3.6 × 2.1 =
  4. 4.0.89 × 0.8 =
  5. 5.2.7 × 0.35 =
  6. 6.0.99 × 1.8 =
  7. 7.0.07 × 0.2 =
  8. 8.0.81 × 0.4 =
  9. 9.9.6 × 0.3 =
  10. 10.0.17 × 2.2 =
  11. 11.2.8 × 0.32 =
  12. 12.0.2 × 1.3 =
  13. 13.5.3 × 0.31 =
  14. 14.0.49 × 0.6 =
  15. 15.4.6 × 0.31 =
  16. 16.8.3 × 1.1 =
  17. 17.0.26 × 2.5 =
  18. 18.5.4 × 1.6 =
  19. 19.9.6 × 0.6 =
  20. 20.2.1 × 1.1 =
  21. 21.5.1 × 3.8 =
  22. 22.0.64 × 2.8 =
  23. 23.2.2 × 0.24 =
  24. 24.9.7 × 0.11 =
  25. 25.0.91 × 2.1 =
  26. 26.0.54 × 1.4 =
  27. 27.1.8 × 0.22 =
  28. 28.0.71 × 2.5 =
  29. 29.0.66 × 3.8 =
  30. 30.5.1 × 1.2 =
  31. 31.8.3 × 0.26 =
  32. 32.7.7 × 1.7 =
  33. 33.6.7 × 2.8 =
  34. 34.2.7 × 2.1 =
  35. 35.0.06 × 2.8 =
  36. 36.0.45 × 0.5 =
  37. 37.0.56 × 1.7 =
  38. 38.0.68 × 1.4 =
  39. 39.0.05 × 1.5 =
  40. 40.0.36 × 0.5 =

Answer key

  1. 0.308
  2. 0.024
  3. 7.56
  4. 0.712
  5. 0.945
  6. 1.782
  7. 0.014
  8. 0.324
  9. 2.88
  10. 0.374
  11. 0.896
  12. 0.26
  13. 1.643
  14. 0.294
  15. 1.426
  16. 9.13
  17. 0.65
  18. 8.64
  19. 5.76
  20. 2.31
  21. 19.38
  22. 1.792
  23. 0.528
  24. 1.067
  25. 1.911
  26. 0.756
  27. 0.396
  28. 1.775
  29. 2.508
  30. 6.12
  31. 2.158
  32. 13.09
  33. 18.76
  34. 5.67
  35. 0.168
  36. 0.225
  37. 0.952
  38. 0.952
  39. 0.075
  40. 0.18

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