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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 623 · 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. 1.3.5 × 0.35 =
  2. 2.1.8 × 3.2 =
  3. 3.0.87 × 2.2 =
  4. 4.0.72 × 2.5 =
  5. 5.0.98 × 3.8 =
  6. 6.0.09 × 0.8 =
  7. 7.0.37 × 1.4 =
  8. 8.0.13 × 1.9 =
  9. 9.0.17 × 0.9 =
  10. 10.5.5 × 0.6 =
  11. 11.6.2 × 1.9 =
  12. 12.0.7 × 0.35 =
  13. 13.0.13 × 0.9 =
  14. 14.8.5 × 0.6 =
  15. 15.0.24 × 0.8 =
  16. 16.0.89 × 0.8 =
  17. 17.7.9 × 0.12 =
  18. 18.5.1 × 3.3 =
  19. 19.0.53 × 2.4 =
  20. 20.0.48 × 1.5 =
  21. 21.2.3 × 0.28 =
  22. 22.0.44 × 2.3 =
  23. 23.2.2 × 2.3 =
  24. 24.3.6 × 1.4 =
  25. 25.0.44 × 2.4 =
  26. 26.2.4 × 3.8 =
  27. 27.2.5 × 0.03 =
  28. 28.6.8 × 0.13 =
  29. 29.6.6 × 2.7 =
  30. 30.0.74 × 1.1 =
  31. 31.7.9 × 0.28 =
  32. 32.0.44 × 0.5 =
  33. 33.0.22 × 3.3 =
  34. 34.4.4 × 0.13 =
  35. 35.0.83 × 2.8 =
  36. 36.9.1 × 0.4 =
  37. 37.0.08 × 1.8 =
  38. 38.7.4 × 3.7 =
  39. 39.0.27 × 0.2 =
  40. 40.9.9 × 0.39 =

Answer key

  1. 1.225
  2. 5.76
  3. 1.914
  4. 1.8
  5. 3.724
  6. 0.072
  7. 0.518
  8. 0.247
  9. 0.153
  10. 3.3
  11. 11.78
  12. 0.245
  13. 0.117
  14. 5.1
  15. 0.192
  16. 0.712
  17. 0.948
  18. 16.83
  19. 1.272
  20. 0.72
  21. 0.644
  22. 1.012
  23. 5.06
  24. 5.04
  25. 1.056
  26. 9.12
  27. 0.075
  28. 0.884
  29. 17.82
  30. 0.814
  31. 2.212
  32. 0.22
  33. 0.726
  34. 0.572
  35. 2.324
  36. 3.64
  37. 0.144
  38. 27.38
  39. 0.054
  40. 3.861

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