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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 613 · 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. 1.6.1 × 3.5 =
  2. 2.0.78 × 0.3 =
  3. 3.6.1 × 0.31 =
  4. 4.5.1 × 0.39 =
  5. 5.0.32 × 0.9 =
  6. 6.5.7 × 0.3 =
  7. 7.2.7 × 0.9 =
  8. 8.2.5 × 3.1 =
  9. 9.0.95 × 1.1 =
  10. 10.0.16 × 2.5 =
  11. 11.0.54 × 1.1 =
  12. 12.0.4 × 0.06 =
  13. 13.8.1 × 0.19 =
  14. 14.8.2 × 0.4 =
  15. 15.0.56 × 1.4 =
  16. 16.0.31 × 1.4 =
  17. 17.0.81 × 3.4 =
  18. 18.0.94 × 1.1 =
  19. 19.0.64 × 0.8 =
  20. 20.0.61 × 2.8 =
  21. 21.1.3 × 0.09 =
  22. 22.0.59 × 3.4 =
  23. 23.0.35 × 3.3 =
  24. 24.0.58 × 3.6 =
  25. 25.0.56 × 1.3 =
  26. 26.0.99 × 3.3 =
  27. 27.0.64 × 2.6 =
  28. 28.9.5 × 1.6 =
  29. 29.6.5 × 3.5 =
  30. 30.0.83 × 0.2 =
  31. 31.0.96 × 1.4 =
  32. 32.1.1 × 0.25 =
  33. 33.0.58 × 3.1 =
  34. 34.8.6 × 3.3 =
  35. 35.3.6 × 0.2 =
  36. 36.0.97 × 2.9 =
  37. 37.2.7 × 0.06 =
  38. 38.0.63 × 1.6 =
  39. 39.0.2 × 2.7 =
  40. 40.7.1 × 3.6 =

Answer key

  1. 21.35
  2. 0.234
  3. 1.891
  4. 1.989
  5. 0.288
  6. 1.71
  7. 2.43
  8. 7.75
  9. 1.045
  10. 0.4
  11. 0.594
  12. 0.024
  13. 1.539
  14. 3.28
  15. 0.784
  16. 0.434
  17. 2.754
  18. 1.034
  19. 0.512
  20. 1.708
  21. 0.117
  22. 2.006
  23. 1.155
  24. 2.088
  25. 0.728
  26. 3.267
  27. 1.664
  28. 15.2
  29. 22.75
  30. 0.166
  31. 1.344
  32. 0.275
  33. 1.798
  34. 28.38
  35. 0.72
  36. 2.813
  37. 0.162
  38. 1.008
  39. 0.54
  40. 25.56

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