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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 503 · 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. 1.0.71 × 1.8 =
  2. 2.0.76 × 0.6 =
  3. 3.0.05 × 2.7 =
  4. 4.0.15 × 1.2 =
  5. 5.0.24 × 1.2 =
  6. 6.2.7 × 0.06 =
  7. 7.0.34 × 1.8 =
  8. 8.0.81 × 1.1 =
  9. 9.9.4 × 1.5 =
  10. 10.0.18 × 1.5 =
  11. 11.0.86 × 1.1 =
  12. 12.0.5 × 2.4 =
  13. 13.0.3 × 1.6 =
  14. 14.0.82 × 3.9 =
  15. 15.0.87 × 0.8 =
  16. 16.0.34 × 2.5 =
  17. 17.0.91 × 0.2 =
  18. 18.0.7 × 0.28 =
  19. 19.0.35 × 3.8 =
  20. 20.0.09 × 1.9 =
  21. 21.7.9 × 0.9 =
  22. 22.1.4 × 0.08 =
  23. 23.2.4 × 2.3 =
  24. 24.0.5 × 2.1 =
  25. 25.0.27 × 0.8 =
  26. 26.2.9 × 3.6 =
  27. 27.5.5 × 0.07 =
  28. 28.0.33 × 1.1 =
  29. 29.0.79 × 1.6 =
  30. 30.0.69 × 0.5 =
  31. 31.3.1 × 0.27 =
  32. 32.0.56 × 3.3 =
  33. 33.0.51 × 3.7 =
  34. 34.9.7 × 3.7 =
  35. 35.7.7 × 0.38 =
  36. 36.6.4 × 0.26 =
  37. 37.0.91 × 3.3 =
  38. 38.8.1 × 3.1 =
  39. 39.6.5 × 0.04 =
  40. 40.0.37 × 0.9 =

Answer key

  1. 1.278
  2. 0.456
  3. 0.135
  4. 0.18
  5. 0.288
  6. 0.162
  7. 0.612
  8. 0.891
  9. 14.1
  10. 0.27
  11. 0.946
  12. 1.2
  13. 0.48
  14. 3.198
  15. 0.696
  16. 0.85
  17. 0.182
  18. 0.196
  19. 1.33
  20. 0.171
  21. 7.11
  22. 0.112
  23. 5.52
  24. 1.05
  25. 0.216
  26. 10.44
  27. 0.385
  28. 0.363
  29. 1.264
  30. 0.345
  31. 0.837
  32. 1.848
  33. 1.887
  34. 35.89
  35. 2.926
  36. 1.664
  37. 3.003
  38. 25.11
  39. 0.26
  40. 0.333

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