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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 636 · 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. 1.8.6 × 1.8 =
  2. 2.3.9 × 0.05 =
  3. 3.0.04 × 3.4 =
  4. 4.3.9 × 0.21 =
  5. 5.0.79 × 2.4 =
  6. 6.0.02 × 3.3 =
  7. 7.8.3 × 3.5 =
  8. 8.0.91 × 2.1 =
  9. 9.0.31 × 0.4 =
  10. 10.4.5 × 0.13 =
  11. 11.0.96 × 0.6 =
  12. 12.4.2 × 0.26 =
  13. 13.0.43 × 2.1 =
  14. 14.2.6 × 0.27 =
  15. 15.3.4 × 3.1 =
  16. 16.0.28 × 2.1 =
  17. 17.3.1 × 2.1 =
  18. 18.1.7 × 1.6 =
  19. 19.4.1 × 0.3 =
  20. 20.0.67 × 3.8 =
  21. 21.6.5 × 0.27 =
  22. 22.0.29 × 2.6 =
  23. 23.0.19 × 0.9 =
  24. 24.0.42 × 1.1 =
  25. 25.0.87 × 1.3 =
  26. 26.1.6 × 0.29 =
  27. 27.3.3 × 3.3 =
  28. 28.0.13 × 2.1 =
  29. 29.0.67 × 1.5 =
  30. 30.7.8 × 2.1 =
  31. 31.7.2 × 2.6 =
  32. 32.4.2 × 2.1 =
  33. 33.6.4 × 0.24 =
  34. 34.0.44 × 2.3 =
  35. 35.1.4 × 0.25 =
  36. 36.0.08 × 3.9 =
  37. 37.0.88 × 1.1 =
  38. 38.0.5 × 3.8 =
  39. 39.0.48 × 0.2 =
  40. 40.9.6 × 0.23 =

Answer key

  1. 15.48
  2. 0.195
  3. 0.136
  4. 0.819
  5. 1.896
  6. 0.066
  7. 29.05
  8. 1.911
  9. 0.124
  10. 0.585
  11. 0.576
  12. 1.092
  13. 0.903
  14. 0.702
  15. 10.54
  16. 0.588
  17. 6.51
  18. 2.72
  19. 1.23
  20. 2.546
  21. 1.755
  22. 0.754
  23. 0.171
  24. 0.462
  25. 1.131
  26. 0.464
  27. 10.89
  28. 0.273
  29. 1.005
  30. 16.38
  31. 18.72
  32. 8.82
  33. 1.536
  34. 1.012
  35. 0.35
  36. 0.312
  37. 0.968
  38. 1.9
  39. 0.096
  40. 2.208

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