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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 672 · 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. 1.0.2 × 3.1 =
  2. 2.0.34 × 3.4 =
  3. 3.0.09 × 2.8 =
  4. 4.0.32 × 2.3 =
  5. 5.9.4 × 0.3 =
  6. 6.7.7 × 0.9 =
  7. 7.5.1 × 0.06 =
  8. 8.0.07 × 1.7 =
  9. 9.0.09 × 1.6 =
  10. 10.3.6 × 2.1 =
  11. 11.2.4 × 2.8 =
  12. 12.1.8 × 0.4 =
  13. 13.5.7 × 0.15 =
  14. 14.0.91 × 0.4 =
  15. 15.3.1 × 0.06 =
  16. 16.1.3 × 0.28 =
  17. 17.0.22 × 0.2 =
  18. 18.0.05 × 2.1 =
  19. 19.0.22 × 1.1 =
  20. 20.0.15 × 2.2 =
  21. 21.0.12 × 0.7 =
  22. 22.1.8 × 1.8 =
  23. 23.0.3 × 0.33 =
  24. 24.0.04 × 2.3 =
  25. 25.0.84 × 2.1 =
  26. 26.0.29 × 3.9 =
  27. 27.0.11 × 2.2 =
  28. 28.0.7 × 3.4 =
  29. 29.3.2 × 0.02 =
  30. 30.4.5 × 1.4 =
  31. 31.0.61 × 2.5 =
  32. 32.0.07 × 3.4 =
  33. 33.0.03 × 0.6 =
  34. 34.2.6 × 0.11 =
  35. 35.0.49 × 3.6 =
  36. 36.2.4 × 1.1 =
  37. 37.0.48 × 1.1 =
  38. 38.9.3 × 1.6 =
  39. 39.0.72 × 2.1 =
  40. 40.2.3 × 0.23 =

Answer key

  1. 0.62
  2. 1.156
  3. 0.252
  4. 0.736
  5. 2.82
  6. 6.93
  7. 0.306
  8. 0.119
  9. 0.144
  10. 7.56
  11. 6.72
  12. 0.72
  13. 0.855
  14. 0.364
  15. 0.186
  16. 0.364
  17. 0.044
  18. 0.105
  19. 0.242
  20. 0.33
  21. 0.084
  22. 3.24
  23. 0.099
  24. 0.092
  25. 1.764
  26. 1.131
  27. 0.242
  28. 2.38
  29. 0.064
  30. 6.3
  31. 1.525
  32. 0.238
  33. 0.018
  34. 0.286
  35. 1.764
  36. 2.64
  37. 0.528
  38. 14.88
  39. 1.512
  40. 0.529

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