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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 237 · 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. 1.0.28 × 0.5 =
  2. 2.0.18 × 1.1 =
  3. 3.0.91 × 0.7 =
  4. 4.5.6 × 0.9 =
  5. 5.4.7 × 0.23 =
  6. 6.8.2 × 1.1 =
  7. 7.0.48 × 0.2 =
  8. 8.6.7 × 3.7 =
  9. 9.0.2 × 1.7 =
  10. 10.0.04 × 3.5 =
  11. 11.0.14 × 1.1 =
  12. 12.7.4 × 2.9 =
  13. 13.4.5 × 0.33 =
  14. 14.0.62 × 3.7 =
  15. 15.0.08 × 2.1 =
  16. 16.9.1 × 0.02 =
  17. 17.0.13 × 3.2 =
  18. 18.0.09 × 3.6 =
  19. 19.9.5 × 0.37 =
  20. 20.0.25 × 0.9 =
  21. 21.0.63 × 2.4 =
  22. 22.0.24 × 2.1 =
  23. 23.4.8 × 2.3 =
  24. 24.8.4 × 1.6 =
  25. 25.4.5 × 0.11 =
  26. 26.8.4 × 3.9 =
  27. 27.4.5 × 0.8 =
  28. 28.0.51 × 2.4 =
  29. 29.0.6 × 2.4 =
  30. 30.0.29 × 2.4 =
  31. 31.8.8 × 0.5 =
  32. 32.0.6 × 0.22 =
  33. 33.5.1 × 1.2 =
  34. 34.0.9 × 3.8 =
  35. 35.1.4 × 0.2 =
  36. 36.0.2 × 1.7 =
  37. 37.2.5 × 0.29 =
  38. 38.8.5 × 0.39 =
  39. 39.0.06 × 1.7 =
  40. 40.0.33 × 1.4 =

Answer key

  1. 0.14
  2. 0.198
  3. 0.637
  4. 5.04
  5. 1.081
  6. 9.02
  7. 0.096
  8. 24.79
  9. 0.34
  10. 0.14
  11. 0.154
  12. 21.46
  13. 1.485
  14. 2.294
  15. 0.168
  16. 0.182
  17. 0.416
  18. 0.324
  19. 3.515
  20. 0.225
  21. 1.512
  22. 0.504
  23. 11.04
  24. 13.44
  25. 0.495
  26. 32.76
  27. 3.6
  28. 1.224
  29. 1.44
  30. 0.696
  31. 4.4
  32. 0.132
  33. 6.12
  34. 3.42
  35. 0.28
  36. 0.34
  37. 0.725
  38. 3.315
  39. 0.102
  40. 0.462

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