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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 275 · 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. 1.3.3 × 1.9 =
  2. 2.9.1 × 3.7 =
  3. 3.0.97 × 3.6 =
  4. 4.9.8 × 1.1 =
  5. 5.6.6 × 0.28 =
  6. 6.0.7 × 1.8 =
  7. 7.0.69 × 1.4 =
  8. 8.3.6 × 0.11 =
  9. 9.0.94 × 2.6 =
  10. 10.4.5 × 0.14 =
  11. 11.0.46 × 0.7 =
  12. 12.0.03 × 3.5 =
  13. 13.7.3 × 0.3 =
  14. 14.0.11 × 0.5 =
  15. 15.4.5 × 0.5 =
  16. 16.3.7 × 0.02 =
  17. 17.7.4 × 2.8 =
  18. 18.3.9 × 2.4 =
  19. 19.1.9 × 0.09 =
  20. 20.0.38 × 2.9 =
  21. 21.0.34 × 0.7 =
  22. 22.4.6 × 0.04 =
  23. 23.8.7 × 0.8 =
  24. 24.7.4 × 0.5 =
  25. 25.2.7 × 2.7 =
  26. 26.2.2 × 0.11 =
  27. 27.8.9 × 0.11 =
  28. 28.4.1 × 1.6 =
  29. 29.0.12 × 0.7 =
  30. 30.9.1 × 0.2 =
  31. 31.8.2 × 0.21 =
  32. 32.4.9 × 3.1 =
  33. 33.3.8 × 0.09 =
  34. 34.0.66 × 1.8 =
  35. 35.6.5 × 3.8 =
  36. 36.0.04 × 3.9 =
  37. 37.4.8 × 0.08 =
  38. 38.0.63 × 2.3 =
  39. 39.0.34 × 1.1 =
  40. 40.1.7 × 1.9 =

Answer key

  1. 6.27
  2. 33.67
  3. 3.492
  4. 10.78
  5. 1.848
  6. 1.26
  7. 0.966
  8. 0.396
  9. 2.444
  10. 0.63
  11. 0.322
  12. 0.105
  13. 2.19
  14. 0.055
  15. 2.25
  16. 0.074
  17. 20.72
  18. 9.36
  19. 0.171
  20. 1.102
  21. 0.238
  22. 0.184
  23. 6.96
  24. 3.7
  25. 7.29
  26. 0.242
  27. 0.979
  28. 6.56
  29. 0.084
  30. 1.82
  31. 1.722
  32. 15.19
  33. 0.342
  34. 1.188
  35. 24.7
  36. 0.156
  37. 0.384
  38. 1.449
  39. 0.374
  40. 3.23

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