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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 687 · 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. 1.2.6 × 3.5 =
  2. 2.0.59 × 1.1 =
  3. 3.0.89 × 3.5 =
  4. 4.0.12 × 2.5 =
  5. 5.6.8 × 0.22 =
  6. 6.0.65 × 1.4 =
  7. 7.0.47 × 2.3 =
  8. 8.2.7 × 3.1 =
  9. 9.0.13 × 3.2 =
  10. 10.6.7 × 0.13 =
  11. 11.8.2 × 0.6 =
  12. 12.1.9 × 3.4 =
  13. 13.0.63 × 1.1 =
  14. 14.0.78 × 1.5 =
  15. 15.0.98 × 0.4 =
  16. 16.6.3 × 0.6 =
  17. 17.6.2 × 0.29 =
  18. 18.8.3 × 0.29 =
  19. 19.6.9 × 2.2 =
  20. 20.0.09 × 3.3 =
  21. 21.0.69 × 2.6 =
  22. 22.3.5 × 0.14 =
  23. 23.1.4 × 3.2 =
  24. 24.0.11 × 0.2 =
  25. 25.8.2 × 1.2 =
  26. 26.0.66 × 2.1 =
  27. 27.0.05 × 3.7 =
  28. 28.0.32 × 2.9 =
  29. 29.1.6 × 3.5 =
  30. 30.3.2 × 0.21 =
  31. 31.3.3 × 0.3 =
  32. 32.0.4 × 1.1 =
  33. 33.0.06 × 0.6 =
  34. 34.0.43 × 1.9 =
  35. 35.4.1 × 2.5 =
  36. 36.5.6 × 1.3 =
  37. 37.9.4 × 3.7 =
  38. 38.0.07 × 2.2 =
  39. 39.9.3 × 0.14 =
  40. 40.1.1 × 1.6 =

Answer key

  1. 9.1
  2. 0.649
  3. 3.115
  4. 0.3
  5. 1.496
  6. 0.91
  7. 1.081
  8. 8.37
  9. 0.416
  10. 0.871
  11. 4.92
  12. 6.46
  13. 0.693
  14. 1.17
  15. 0.392
  16. 3.78
  17. 1.798
  18. 2.407
  19. 15.18
  20. 0.297
  21. 1.794
  22. 0.49
  23. 4.48
  24. 0.022
  25. 9.84
  26. 1.386
  27. 0.185
  28. 0.928
  29. 5.6
  30. 0.672
  31. 0.99
  32. 0.44
  33. 0.036
  34. 0.817
  35. 10.25
  36. 7.28
  37. 34.78
  38. 0.154
  39. 1.302
  40. 1.76

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