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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 354 · 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. 1.1.3 × 0.09 =
  2. 2.4.8 × 2.8 =
  3. 3.0.03 × 0.3 =
  4. 4.3.1 × 0.26 =
  5. 5.0.49 × 3.3 =
  6. 6.0.45 × 3.8 =
  7. 7.8.1 × 0.39 =
  8. 8.7.2 × 0.6 =
  9. 9.0.31 × 3.7 =
  10. 10.5.1 × 3.7 =
  11. 11.0.09 × 1.5 =
  12. 12.8.8 × 1.1 =
  13. 13.0.24 × 0.3 =
  14. 14.1.2 × 0.7 =
  15. 15.0.82 × 0.6 =
  16. 16.6.4 × 0.29 =
  17. 17.8.4 × 0.34 =
  18. 18.9.1 × 0.18 =
  19. 19.6.5 × 1.1 =
  20. 20.3.3 × 0.38 =
  21. 21.7.6 × 2.5 =
  22. 22.0.79 × 3.1 =
  23. 23.0.54 × 1.8 =
  24. 24.4.1 × 0.25 =
  25. 25.0.68 × 3.2 =
  26. 26.8.8 × 0.6 =
  27. 27.0.79 × 3.1 =
  28. 28.0.92 × 0.2 =
  29. 29.8.8 × 1.4 =
  30. 30.4.4 × 0.7 =
  31. 31.0.75 × 1.1 =
  32. 32.5.9 × 0.21 =
  33. 33.4.2 × 0.36 =
  34. 34.3.2 × 0.15 =
  35. 35.2.8 × 1.1 =
  36. 36.4.1 × 0.6 =
  37. 37.9.3 × 3.2 =
  38. 38.9.5 × 0.21 =
  39. 39.0.93 × 3.4 =
  40. 40.0.71 × 0.5 =

Answer key

  1. 0.117
  2. 13.44
  3. 0.009
  4. 0.806
  5. 1.617
  6. 1.71
  7. 3.159
  8. 4.32
  9. 1.147
  10. 18.87
  11. 0.135
  12. 9.68
  13. 0.072
  14. 0.84
  15. 0.492
  16. 1.856
  17. 2.856
  18. 1.638
  19. 7.15
  20. 1.254
  21. 19
  22. 2.449
  23. 0.972
  24. 1.025
  25. 2.176
  26. 5.28
  27. 2.449
  28. 0.184
  29. 12.32
  30. 3.08
  31. 0.825
  32. 1.239
  33. 1.512
  34. 0.48
  35. 3.08
  36. 2.46
  37. 29.76
  38. 1.995
  39. 3.162
  40. 0.355

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