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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 17 · 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. 1.0.48 × 3.2 =
  2. 2.5.8 × 0.6 =
  3. 3.5.3 × 1.9 =
  4. 4.0.07 × 0.4 =
  5. 5.8.1 × 1.5 =
  6. 6.0.65 × 1.5 =
  7. 7.6.7 × 0.03 =
  8. 8.0.2 × 2.4 =
  9. 9.1.5 × 0.5 =
  10. 10.0.03 × 2.3 =
  11. 11.6.1 × 0.23 =
  12. 12.0.23 × 3.3 =
  13. 13.7.5 × 0.4 =
  14. 14.6.8 × 0.21 =
  15. 15.1.1 × 0.14 =
  16. 16.9.2 × 2.1 =
  17. 17.0.74 × 2.7 =
  18. 18.3.8 × 0.06 =
  19. 19.0.39 × 1.6 =
  20. 20.0.92 × 0.4 =
  21. 21.0.9 × 0.21 =
  22. 22.9.7 × 0.8 =
  23. 23.0.29 × 3.1 =
  24. 24.0.7 × 0.02 =
  25. 25.2.1 × 0.14 =
  26. 26.9.8 × 0.34 =
  27. 27.8.7 × 0.12 =
  28. 28.4.4 × 3.2 =
  29. 29.6.8 × 0.13 =
  30. 30.1.5 × 3.2 =
  31. 31.0.81 × 0.5 =
  32. 32.0.65 × 2.6 =
  33. 33.0.16 × 0.4 =
  34. 34.4.9 × 1.8 =
  35. 35.4.7 × 1.3 =
  36. 36.0.73 × 3.7 =
  37. 37.0.82 × 3.7 =
  38. 38.4.1 × 0.38 =
  39. 39.2.1 × 0.38 =
  40. 40.6.8 × 0.13 =

Answer key

  1. 1.536
  2. 3.48
  3. 10.07
  4. 0.028
  5. 12.15
  6. 0.975
  7. 0.201
  8. 0.48
  9. 0.75
  10. 0.069
  11. 1.403
  12. 0.759
  13. 3
  14. 1.428
  15. 0.154
  16. 19.32
  17. 1.998
  18. 0.228
  19. 0.624
  20. 0.368
  21. 0.189
  22. 7.76
  23. 0.899
  24. 0.014
  25. 0.294
  26. 3.332
  27. 1.044
  28. 14.08
  29. 0.884
  30. 4.8
  31. 0.405
  32. 1.69
  33. 0.064
  34. 8.82
  35. 6.11
  36. 2.701
  37. 3.034
  38. 1.558
  39. 0.798
  40. 0.884

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