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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 53 · 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. 1.0.77 × 2.1 =
  2. 2.0.05 × 2.3 =
  3. 3.2.4 × 0.19 =
  4. 4.1.6 × 0.9 =
  5. 5.5.7 × 2.7 =
  6. 6.0.51 × 2.1 =
  7. 7.9.1 × 1.4 =
  8. 8.0.52 × 0.8 =
  9. 9.3.6 × 0.38 =
  10. 10.0.08 × 1.6 =
  11. 11.0.71 × 0.5 =
  12. 12.0.22 × 3.9 =
  13. 13.0.81 × 1.8 =
  14. 14.0.11 × 2.5 =
  15. 15.2.6 × 2.9 =
  16. 16.9.1 × 0.09 =
  17. 17.3.8 × 2.2 =
  18. 18.0.28 × 1.1 =
  19. 19.5.6 × 2.4 =
  20. 20.0.76 × 0.4 =
  21. 21.0.3 × 0.22 =
  22. 22.0.96 × 1.1 =
  23. 23.0.04 × 3.5 =
  24. 24.6.5 × 0.31 =
  25. 25.0.7 × 1.2 =
  26. 26.3.1 × 0.09 =
  27. 27.3.1 × 3.1 =
  28. 28.0.45 × 3.3 =
  29. 29.0.71 × 2.6 =
  30. 30.0.74 × 3.6 =
  31. 31.2.7 × 0.06 =
  32. 32.1.9 × 0.31 =
  33. 33.1.7 × 1.9 =
  34. 34.2.7 × 1.6 =
  35. 35.4.6 × 0.9 =
  36. 36.2.1 × 0.7 =
  37. 37.3.3 × 0.3 =
  38. 38.0.85 × 1.3 =
  39. 39.9.6 × 1.6 =
  40. 40.0.15 × 0.4 =

Answer key

  1. 1.617
  2. 0.115
  3. 0.456
  4. 1.44
  5. 15.39
  6. 1.071
  7. 12.74
  8. 0.416
  9. 1.368
  10. 0.128
  11. 0.355
  12. 0.858
  13. 1.458
  14. 0.275
  15. 7.54
  16. 0.819
  17. 8.36
  18. 0.308
  19. 13.44
  20. 0.304
  21. 0.066
  22. 1.056
  23. 0.14
  24. 2.015
  25. 0.84
  26. 0.279
  27. 9.61
  28. 1.485
  29. 1.846
  30. 2.664
  31. 0.162
  32. 0.589
  33. 3.23
  34. 4.32
  35. 4.14
  36. 1.47
  37. 0.99
  38. 1.105
  39. 15.36
  40. 0.06

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