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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 763 · 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. 1.0.65 × 2.1 =
  2. 2.0.82 × 2.1 =
  3. 3.7.1 × 0.09 =
  4. 4.0.45 × 2.5 =
  5. 5.1.8 × 0.02 =
  6. 6.8.3 × 0.19 =
  7. 7.0.97 × 2.2 =
  8. 8.0.91 × 0.6 =
  9. 9.2.1 × 0.07 =
  10. 10.0.88 × 2.3 =
  11. 11.0.16 × 1.6 =
  12. 12.0.8 × 3.4 =
  13. 13.0.62 × 1.3 =
  14. 14.2.2 × 3.6 =
  15. 15.7.1 × 3.5 =
  16. 16.9.4 × 0.38 =
  17. 17.0.24 × 0.2 =
  18. 18.0.53 × 2.2 =
  19. 19.0.43 × 1.2 =
  20. 20.0.32 × 0.8 =
  21. 21.1.3 × 2.9 =
  22. 22.1.1 × 0.37 =
  23. 23.0.06 × 3.2 =
  24. 24.0.32 × 3.6 =
  25. 25.0.31 × 1.8 =
  26. 26.9.2 × 0.04 =
  27. 27.4.8 × 0.21 =
  28. 28.0.87 × 3.5 =
  29. 29.1.8 × 2.9 =
  30. 30.0.81 × 1.1 =
  31. 31.2.4 × 1.8 =
  32. 32.0.7 × 1.6 =
  33. 33.0.34 × 2.7 =
  34. 34.5.7 × 0.8 =
  35. 35.0.51 × 1.5 =
  36. 36.4.1 × 0.23 =
  37. 37.4.1 × 2.3 =
  38. 38.8.8 × 0.11 =
  39. 39.0.95 × 2.1 =
  40. 40.6.5 × 0.39 =

Answer key

  1. 1.365
  2. 1.722
  3. 0.639
  4. 1.125
  5. 0.036
  6. 1.577
  7. 2.134
  8. 0.546
  9. 0.147
  10. 2.024
  11. 0.256
  12. 2.72
  13. 0.806
  14. 7.92
  15. 24.85
  16. 3.572
  17. 0.048
  18. 1.166
  19. 0.516
  20. 0.256
  21. 3.77
  22. 0.407
  23. 0.192
  24. 1.152
  25. 0.558
  26. 0.368
  27. 1.008
  28. 3.045
  29. 5.22
  30. 0.891
  31. 4.32
  32. 1.12
  33. 0.918
  34. 4.56
  35. 0.765
  36. 0.943
  37. 9.43
  38. 0.968
  39. 1.995
  40. 2.535

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