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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 245 · 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 × 3.4 =
  2. 2.9.1 × 0.03 =
  3. 3.9.6 × 1.9 =
  4. 4.0.25 × 0.2 =
  5. 5.0.57 × 2.9 =
  6. 6.1.9 × 1.1 =
  7. 7.0.53 × 3.1 =
  8. 8.0.21 × 0.7 =
  9. 9.5.6 × 3.6 =
  10. 10.8.2 × 1.5 =
  11. 11.0.7 × 0.25 =
  12. 12.2.8 × 1.9 =
  13. 13.0.7 × 0.02 =
  14. 14.9.1 × 1.1 =
  15. 15.0.77 × 3.1 =
  16. 16.3.9 × 0.37 =
  17. 17.1.4 × 0.24 =
  18. 18.0.77 × 3.4 =
  19. 19.0.15 × 0.2 =
  20. 20.0.3 × 0.25 =
  21. 21.8.5 × 0.13 =
  22. 22.0.26 × 3.9 =
  23. 23.2.2 × 1.3 =
  24. 24.1.1 × 0.5 =
  25. 25.0.99 × 1.8 =
  26. 26.0.87 × 2.4 =
  27. 27.0.79 × 3.1 =
  28. 28.7.5 × 0.13 =
  29. 29.6.3 × 0.33 =
  30. 30.5.1 × 0.39 =
  31. 31.0.81 × 2.9 =
  32. 32.1.2 × 1.1 =
  33. 33.2.7 × 0.12 =
  34. 34.2.9 × 1.8 =
  35. 35.0.82 × 0.8 =
  36. 36.4.1 × 1.6 =
  37. 37.9.3 × 0.37 =
  38. 38.0.59 × 0.3 =
  39. 39.0.86 × 1.3 =
  40. 40.4.9 × 0.28 =

Answer key

  1. 0.544
  2. 0.273
  3. 18.24
  4. 0.05
  5. 1.653
  6. 2.09
  7. 1.643
  8. 0.147
  9. 20.16
  10. 12.3
  11. 0.175
  12. 5.32
  13. 0.014
  14. 10.01
  15. 2.387
  16. 1.443
  17. 0.336
  18. 2.618
  19. 0.03
  20. 0.075
  21. 1.105
  22. 1.014
  23. 2.86
  24. 0.55
  25. 1.782
  26. 2.088
  27. 2.449
  28. 0.975
  29. 2.079
  30. 1.989
  31. 2.349
  32. 1.32
  33. 0.324
  34. 5.22
  35. 0.656
  36. 6.56
  37. 3.441
  38. 0.177
  39. 1.118
  40. 1.372

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