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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 335 · 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. 1.7.8 × 0.33 =
  2. 2.0.41 × 0.7 =
  3. 3.0.77 × 3.5 =
  4. 4.4.5 × 0.04 =
  5. 5.0.38 × 3.1 =
  6. 6.0.19 × 2.4 =
  7. 7.0.09 × 1.1 =
  8. 8.0.93 × 3.1 =
  9. 9.0.34 × 2.9 =
  10. 10.9.5 × 0.6 =
  11. 11.0.08 × 2.5 =
  12. 12.1.5 × 0.31 =
  13. 13.7.2 × 0.22 =
  14. 14.0.78 × 1.8 =
  15. 15.0.92 × 1.5 =
  16. 16.0.49 × 0.7 =
  17. 17.8.7 × 2.1 =
  18. 18.1.8 × 1.2 =
  19. 19.0.79 × 1.5 =
  20. 20.2.9 × 2.4 =
  21. 21.3.4 × 3.7 =
  22. 22.0.61 × 1.1 =
  23. 23.5.7 × 0.11 =
  24. 24.0.88 × 1.3 =
  25. 25.8.8 × 3.9 =
  26. 26.0.26 × 2.1 =
  27. 27.9.3 × 0.37 =
  28. 28.0.27 × 1.2 =
  29. 29.1.7 × 3.5 =
  30. 30.0.17 × 3.1 =
  31. 31.0.28 × 1.2 =
  32. 32.3.1 × 2.8 =
  33. 33.1.2 × 0.29 =
  34. 34.0.89 × 1.5 =
  35. 35.0.84 × 0.6 =
  36. 36.8.5 × 1.9 =
  37. 37.8.4 × 0.13 =
  38. 38.0.53 × 2.7 =
  39. 39.0.36 × 2.6 =
  40. 40.0.79 × 0.8 =

Answer key

  1. 2.574
  2. 0.287
  3. 2.695
  4. 0.18
  5. 1.178
  6. 0.456
  7. 0.099
  8. 2.883
  9. 0.986
  10. 5.7
  11. 0.2
  12. 0.465
  13. 1.584
  14. 1.404
  15. 1.38
  16. 0.343
  17. 18.27
  18. 2.16
  19. 1.185
  20. 6.96
  21. 12.58
  22. 0.671
  23. 0.627
  24. 1.144
  25. 34.32
  26. 0.546
  27. 3.441
  28. 0.324
  29. 5.95
  30. 0.527
  31. 0.336
  32. 8.68
  33. 0.348
  34. 1.335
  35. 0.504
  36. 16.15
  37. 1.092
  38. 1.431
  39. 0.936
  40. 0.632

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