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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 897 · 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. 1.1.9 × 2.2 =
  2. 2.9.1 × 3.9 =
  3. 3.0.56 × 0.4 =
  4. 4.4.4 × 0.24 =
  5. 5.4.1 × 0.33 =
  6. 6.6.6 × 0.18 =
  7. 7.0.38 × 3.1 =
  8. 8.2.3 × 0.34 =
  9. 9.0.51 × 0.2 =
  10. 10.0.38 × 0.5 =
  11. 11.9.4 × 2.1 =
  12. 12.0.62 × 1.4 =
  13. 13.1.6 × 0.13 =
  14. 14.1.1 × 1.7 =
  15. 15.0.97 × 1.9 =
  16. 16.0.08 × 3.1 =
  17. 17.0.17 × 2.3 =
  18. 18.0.51 × 0.3 =
  19. 19.0.06 × 0.6 =
  20. 20.3.1 × 0.28 =
  21. 21.6.3 × 0.03 =
  22. 22.0.07 × 2.1 =
  23. 23.0.39 × 0.9 =
  24. 24.8.9 × 0.27 =
  25. 25.3.5 × 3.1 =
  26. 26.2.5 × 0.9 =
  27. 27.0.49 × 0.2 =
  28. 28.0.41 × 1.7 =
  29. 29.0.15 × 2.8 =
  30. 30.0.54 × 0.4 =
  31. 31.0.76 × 0.8 =
  32. 32.3.1 × 0.32 =
  33. 33.0.95 × 1.8 =
  34. 34.0.55 × 2.7 =
  35. 35.9.3 × 0.4 =
  36. 36.8.9 × 0.5 =
  37. 37.7.1 × 0.36 =
  38. 38.0.07 × 3.7 =
  39. 39.2.3 × 0.06 =
  40. 40.0.39 × 1.3 =

Answer key

  1. 4.18
  2. 35.49
  3. 0.224
  4. 1.056
  5. 1.353
  6. 1.188
  7. 1.178
  8. 0.782
  9. 0.102
  10. 0.19
  11. 19.74
  12. 0.868
  13. 0.208
  14. 1.87
  15. 1.843
  16. 0.248
  17. 0.391
  18. 0.153
  19. 0.036
  20. 0.868
  21. 0.189
  22. 0.147
  23. 0.351
  24. 2.403
  25. 10.85
  26. 2.25
  27. 0.098
  28. 0.697
  29. 0.42
  30. 0.216
  31. 0.608
  32. 0.992
  33. 1.71
  34. 1.485
  35. 3.72
  36. 4.45
  37. 2.556
  38. 0.259
  39. 0.138
  40. 0.507

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