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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 862 · 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. 1.0.81 × 1.8 =
  2. 2.2.2 × 3.8 =
  3. 3.0.12 × 3.6 =
  4. 4.0.23 × 1.9 =
  5. 5.7.4 × 0.28 =
  6. 6.0.03 × 1.5 =
  7. 7.3.2 × 0.35 =
  8. 8.0.64 × 1.1 =
  9. 9.0.27 × 2.3 =
  10. 10.7.7 × 0.23 =
  11. 11.0.43 × 0.7 =
  12. 12.0.19 × 0.8 =
  13. 13.0.02 × 1.1 =
  14. 14.0.25 × 1.2 =
  15. 15.6.4 × 0.33 =
  16. 16.0.83 × 2.8 =
  17. 17.0.84 × 0.6 =
  18. 18.0.51 × 2.4 =
  19. 19.6.2 × 0.9 =
  20. 20.0.76 × 3.3 =
  21. 21.3.5 × 0.13 =
  22. 22.1.1 × 0.23 =
  23. 23.2.2 × 0.33 =
  24. 24.2.1 × 3.2 =
  25. 25.0.09 × 0.9 =
  26. 26.0.21 × 0.7 =
  27. 27.8.9 × 0.25 =
  28. 28.0.13 × 1.1 =
  29. 29.0.03 × 3.7 =
  30. 30.0.08 × 0.2 =
  31. 31.0.04 × 3.6 =
  32. 32.2.7 × 1.7 =
  33. 33.0.27 × 3.1 =
  34. 34.1.8 × 0.32 =
  35. 35.0.26 × 1.2 =
  36. 36.0.11 × 3.1 =
  37. 37.5.7 × 0.2 =
  38. 38.7.1 × 1.4 =
  39. 39.6.7 × 3.1 =
  40. 40.0.62 × 3.7 =

Answer key

  1. 1.458
  2. 8.36
  3. 0.432
  4. 0.437
  5. 2.072
  6. 0.045
  7. 1.12
  8. 0.704
  9. 0.621
  10. 1.771
  11. 0.301
  12. 0.152
  13. 0.022
  14. 0.3
  15. 2.112
  16. 2.324
  17. 0.504
  18. 1.224
  19. 5.58
  20. 2.508
  21. 0.455
  22. 0.253
  23. 0.726
  24. 6.72
  25. 0.081
  26. 0.147
  27. 2.225
  28. 0.143
  29. 0.111
  30. 0.016
  31. 0.144
  32. 4.59
  33. 0.837
  34. 0.576
  35. 0.312
  36. 0.341
  37. 1.14
  38. 9.94
  39. 20.77
  40. 2.294

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