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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 187 · 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. 1.5.6 × 0.5 =
  2. 2.0.58 × 0.7 =
  3. 3.0.48 × 3.3 =
  4. 4.0.81 × 1.9 =
  5. 5.4.3 × 1.7 =
  6. 6.8.6 × 1.6 =
  7. 7.2.9 × 0.07 =
  8. 8.0.14 × 2.5 =
  9. 9.1.7 × 1.8 =
  10. 10.5.1 × 0.37 =
  11. 11.0.35 × 2.2 =
  12. 12.0.26 × 0.2 =
  13. 13.0.8 × 0.04 =
  14. 14.8.7 × 3.9 =
  15. 15.0.3 × 3.5 =
  16. 16.0.51 × 0.4 =
  17. 17.0.21 × 0.7 =
  18. 18.1.6 × 3.1 =
  19. 19.9.7 × 3.9 =
  20. 20.0.19 × 3.8 =
  21. 21.5.2 × 3.5 =
  22. 22.0.85 × 3.2 =
  23. 23.0.41 × 2.7 =
  24. 24.0.78 × 2.1 =
  25. 25.7.8 × 2.1 =
  26. 26.9.5 × 3.6 =
  27. 27.0.54 × 3.1 =
  28. 28.0.06 × 0.7 =
  29. 29.0.91 × 1.1 =
  30. 30.0.59 × 2.1 =
  31. 31.4.5 × 2.9 =
  32. 32.8.2 × 1.7 =
  33. 33.0.88 × 0.4 =
  34. 34.0.42 × 3.5 =
  35. 35.0.55 × 1.7 =
  36. 36.9.9 × 0.3 =
  37. 37.0.75 × 1.3 =
  38. 38.9.6 × 1.3 =
  39. 39.0.4 × 0.8 =
  40. 40.2.8 × 0.26 =

Answer key

  1. 2.8
  2. 0.406
  3. 1.584
  4. 1.539
  5. 7.31
  6. 13.76
  7. 0.203
  8. 0.35
  9. 3.06
  10. 1.887
  11. 0.77
  12. 0.052
  13. 0.032
  14. 33.93
  15. 1.05
  16. 0.204
  17. 0.147
  18. 4.96
  19. 37.83
  20. 0.722
  21. 18.2
  22. 2.72
  23. 1.107
  24. 1.638
  25. 16.38
  26. 34.2
  27. 1.674
  28. 0.042
  29. 1.001
  30. 1.239
  31. 13.05
  32. 13.94
  33. 0.352
  34. 1.47
  35. 0.935
  36. 2.97
  37. 0.975
  38. 12.48
  39. 0.32
  40. 0.728

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