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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 229 · 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. 1.0.16 × 2.7 =
  2. 2.0.21 × 3.7 =
  3. 3.6.6 × 0.12 =
  4. 4.0.18 × 2.8 =
  5. 5.0.39 × 1.9 =
  6. 6.3.9 × 0.08 =
  7. 7.9.2 × 1.8 =
  8. 8.4.9 × 2.6 =
  9. 9.0.05 × 2.4 =
  10. 10.8.2 × 0.22 =
  11. 11.0.09 × 0.4 =
  12. 12.8.7 × 2.3 =
  13. 13.0.72 × 1.1 =
  14. 14.6.1 × 0.6 =
  15. 15.0.22 × 0.6 =
  16. 16.4.3 × 0.39 =
  17. 17.0.37 × 3.4 =
  18. 18.0.23 × 3.8 =
  19. 19.4.7 × 0.26 =
  20. 20.3.5 × 0.07 =
  21. 21.5.8 × 0.21 =
  22. 22.0.79 × 1.4 =
  23. 23.6.8 × 0.35 =
  24. 24.7.7 × 0.34 =
  25. 25.4.6 × 2.5 =
  26. 26.0.12 × 0.7 =
  27. 27.9.1 × 0.3 =
  28. 28.0.81 × 0.8 =
  29. 29.3.2 × 1.6 =
  30. 30.7.1 × 2.7 =
  31. 31.7.5 × 2.5 =
  32. 32.0.88 × 1.1 =
  33. 33.0.69 × 2.2 =
  34. 34.7.1 × 1.7 =
  35. 35.4.3 × 1.1 =
  36. 36.0.02 × 1.1 =
  37. 37.0.91 × 1.1 =
  38. 38.0.62 × 1.5 =
  39. 39.0.03 × 2.9 =
  40. 40.0.34 × 2.8 =

Answer key

  1. 0.432
  2. 0.777
  3. 0.792
  4. 0.504
  5. 0.741
  6. 0.312
  7. 16.56
  8. 12.74
  9. 0.12
  10. 1.804
  11. 0.036
  12. 20.01
  13. 0.792
  14. 3.66
  15. 0.132
  16. 1.677
  17. 1.258
  18. 0.874
  19. 1.222
  20. 0.245
  21. 1.218
  22. 1.106
  23. 2.38
  24. 2.618
  25. 11.5
  26. 0.084
  27. 2.73
  28. 0.648
  29. 5.12
  30. 19.17
  31. 18.75
  32. 0.968
  33. 1.518
  34. 12.07
  35. 4.73
  36. 0.022
  37. 1.001
  38. 0.93
  39. 0.087
  40. 0.952

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