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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 779 · 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. 1.4.7 × 0.09 =
  2. 2.0.08 × 2.1 =
  3. 3.0.39 × 2.1 =
  4. 4.8.3 × 2.4 =
  5. 5.2.9 × 0.24 =
  6. 6.0.41 × 0.2 =
  7. 7.1.4 × 0.5 =
  8. 8.8.6 × 0.09 =
  9. 9.8.1 × 0.02 =
  10. 10.0.05 × 2.1 =
  11. 11.8.9 × 2.1 =
  12. 12.3.2 × 0.13 =
  13. 13.0.06 × 3.7 =
  14. 14.6.2 × 0.3 =
  15. 15.0.94 × 0.9 =
  16. 16.0.73 × 1.1 =
  17. 17.3.1 × 0.12 =
  18. 18.9.3 × 3.9 =
  19. 19.7.5 × 0.38 =
  20. 20.0.62 × 3.1 =
  21. 21.0.27 × 2.6 =
  22. 22.0.68 × 1.5 =
  23. 23.8.7 × 3.8 =
  24. 24.2.9 × 0.03 =
  25. 25.6.7 × 0.34 =
  26. 26.2.1 × 0.21 =
  27. 27.4.7 × 0.3 =
  28. 28.6.3 × 1.7 =
  29. 29.4.8 × 2.5 =
  30. 30.8.5 × 3.7 =
  31. 31.7.5 × 0.25 =
  32. 32.0.47 × 2.6 =
  33. 33.0.9 × 0.2 =
  34. 34.7.4 × 3.5 =
  35. 35.5.2 × 0.32 =
  36. 36.0.61 × 1.9 =
  37. 37.6.8 × 1.7 =
  38. 38.5.1 × 0.16 =
  39. 39.9.1 × 0.2 =
  40. 40.8.4 × 3.1 =

Answer key

  1. 0.423
  2. 0.168
  3. 0.819
  4. 19.92
  5. 0.696
  6. 0.082
  7. 0.7
  8. 0.774
  9. 0.162
  10. 0.105
  11. 18.69
  12. 0.416
  13. 0.222
  14. 1.86
  15. 0.846
  16. 0.803
  17. 0.372
  18. 36.27
  19. 2.85
  20. 1.922
  21. 0.702
  22. 1.02
  23. 33.06
  24. 0.087
  25. 2.278
  26. 0.441
  27. 1.41
  28. 10.71
  29. 12
  30. 31.45
  31. 1.875
  32. 1.222
  33. 0.18
  34. 25.9
  35. 1.664
  36. 1.159
  37. 11.56
  38. 0.816
  39. 1.82
  40. 26.04

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