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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 400 · 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. 1.0.76 × 2.4 =
  2. 2.0.5 × 0.11 =
  3. 3.0.09 × 3.8 =
  4. 4.0.13 × 1.8 =
  5. 5.0.49 × 3.1 =
  6. 6.0.9 × 0.25 =
  7. 7.9.6 × 3.7 =
  8. 8.0.14 × 2.1 =
  9. 9.1.9 × 0.07 =
  10. 10.0.11 × 3.6 =
  11. 11.9.2 × 0.02 =
  12. 12.3.4 × 2.1 =
  13. 13.0.51 × 3.4 =
  14. 14.0.21 × 2.4 =
  15. 15.2.1 × 1.1 =
  16. 16.1.8 × 0.16 =
  17. 17.1.1 × 0.21 =
  18. 18.7.8 × 0.07 =
  19. 19.0.81 × 1.5 =
  20. 20.1.4 × 0.08 =
  21. 21.9.2 × 0.2 =
  22. 22.4.4 × 0.06 =
  23. 23.7.5 × 1.5 =
  24. 24.4.3 × 0.7 =
  25. 25.8.7 × 1.5 =
  26. 26.3.1 × 0.37 =
  27. 27.8.4 × 0.04 =
  28. 28.4.3 × 2.1 =
  29. 29.0.5 × 0.7 =
  30. 30.0.28 × 0.6 =
  31. 31.2.4 × 3.2 =
  32. 32.8.3 × 3.1 =
  33. 33.0.63 × 2.4 =
  34. 34.2.8 × 2.8 =
  35. 35.0.12 × 0.5 =
  36. 36.0.29 × 2.5 =
  37. 37.1.9 × 0.16 =
  38. 38.0.22 × 2.5 =
  39. 39.8.2 × 0.4 =
  40. 40.0.3 × 2.6 =

Answer key

  1. 1.824
  2. 0.055
  3. 0.342
  4. 0.234
  5. 1.519
  6. 0.225
  7. 35.52
  8. 0.294
  9. 0.133
  10. 0.396
  11. 0.184
  12. 7.14
  13. 1.734
  14. 0.504
  15. 2.31
  16. 0.288
  17. 0.231
  18. 0.546
  19. 1.215
  20. 0.112
  21. 1.84
  22. 0.264
  23. 11.25
  24. 3.01
  25. 13.05
  26. 1.147
  27. 0.336
  28. 9.03
  29. 0.35
  30. 0.168
  31. 7.68
  32. 25.73
  33. 1.512
  34. 7.84
  35. 0.06
  36. 0.725
  37. 0.304
  38. 0.55
  39. 3.28
  40. 0.78

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