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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 711 · 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. 1.0.11 × 3.4 =
  2. 2.0.81 × 3.5 =
  3. 3.0.8 × 0.15 =
  4. 4.5.8 × 0.03 =
  5. 5.2.3 × 1.2 =
  6. 6.8.5 × 3.7 =
  7. 7.6.4 × 0.16 =
  8. 8.0.51 × 3.8 =
  9. 9.5.4 × 3.6 =
  10. 10.0.02 × 3.6 =
  11. 11.0.49 × 3.4 =
  12. 12.0.59 × 2.1 =
  13. 13.0.17 × 3.4 =
  14. 14.0.29 × 2.1 =
  15. 15.2.3 × 2.3 =
  16. 16.6.6 × 2.1 =
  17. 17.2.8 × 1.7 =
  18. 18.6.1 × 0.21 =
  19. 19.1.9 × 3.1 =
  20. 20.0.83 × 3.1 =
  21. 21.0.89 × 0.9 =
  22. 22.6.3 × 0.31 =
  23. 23.2.5 × 2.2 =
  24. 24.0.96 × 0.6 =
  25. 25.0.75 × 3.8 =
  26. 26.0.49 × 3.2 =
  27. 27.5.5 × 1.5 =
  28. 28.0.49 × 2.1 =
  29. 29.5.1 × 0.09 =
  30. 30.0.24 × 3.9 =
  31. 31.6.1 × 0.2 =
  32. 32.0.41 × 0.4 =
  33. 33.0.86 × 0.6 =
  34. 34.0.36 × 3.9 =
  35. 35.9.1 × 2.3 =
  36. 36.3.2 × 0.26 =
  37. 37.0.64 × 2.8 =
  38. 38.2.6 × 0.13 =
  39. 39.0.66 × 1.1 =
  40. 40.0.11 × 2.5 =

Answer key

  1. 0.374
  2. 2.835
  3. 0.12
  4. 0.174
  5. 2.76
  6. 31.45
  7. 1.024
  8. 1.938
  9. 19.44
  10. 0.072
  11. 1.666
  12. 1.239
  13. 0.578
  14. 0.609
  15. 5.29
  16. 13.86
  17. 4.76
  18. 1.281
  19. 5.89
  20. 2.573
  21. 0.801
  22. 1.953
  23. 5.5
  24. 0.576
  25. 2.85
  26. 1.568
  27. 8.25
  28. 1.029
  29. 0.459
  30. 0.936
  31. 1.22
  32. 0.164
  33. 0.516
  34. 1.404
  35. 20.93
  36. 0.832
  37. 1.792
  38. 0.338
  39. 0.726
  40. 0.275

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