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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 291 · 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. 1.0.51 × 2.1 =
  2. 2.3.5 × 0.02 =
  3. 3.0.56 × 3.2 =
  4. 4.8.9 × 0.5 =
  5. 5.8.6 × 1.6 =
  6. 6.9.4 × 3.2 =
  7. 7.0.24 × 1.1 =
  8. 8.0.44 × 1.7 =
  9. 9.0.67 × 0.2 =
  10. 10.5.7 × 0.11 =
  11. 11.0.26 × 3.2 =
  12. 12.1.2 × 0.28 =
  13. 13.6.5 × 3.9 =
  14. 14.6.1 × 1.5 =
  15. 15.0.22 × 3.5 =
  16. 16.9.9 × 3.3 =
  17. 17.1.7 × 0.07 =
  18. 18.0.72 × 2.2 =
  19. 19.1.2 × 0.02 =
  20. 20.2.4 × 0.09 =
  21. 21.7.7 × 2.2 =
  22. 22.3.5 × 2.9 =
  23. 23.5.1 × 0.31 =
  24. 24.2.7 × 1.2 =
  25. 25.0.51 × 1.3 =
  26. 26.0.85 × 0.5 =
  27. 27.2.2 × 0.9 =
  28. 28.4.9 × 0.4 =
  29. 29.0.02 × 3.5 =
  30. 30.3.8 × 0.39 =
  31. 31.1.7 × 3.2 =
  32. 32.1.2 × 0.12 =
  33. 33.1.7 × 3.4 =
  34. 34.6.1 × 0.28 =
  35. 35.6.1 × 0.07 =
  36. 36.8.6 × 0.07 =
  37. 37.6.8 × 0.6 =
  38. 38.0.07 × 2.9 =
  39. 39.0.91 × 2.9 =
  40. 40.0.32 × 3.9 =

Answer key

  1. 1.071
  2. 0.07
  3. 1.792
  4. 4.45
  5. 13.76
  6. 30.08
  7. 0.264
  8. 0.748
  9. 0.134
  10. 0.627
  11. 0.832
  12. 0.336
  13. 25.35
  14. 9.15
  15. 0.77
  16. 32.67
  17. 0.119
  18. 1.584
  19. 0.024
  20. 0.216
  21. 16.94
  22. 10.15
  23. 1.581
  24. 3.24
  25. 0.663
  26. 0.425
  27. 1.98
  28. 1.96
  29. 0.07
  30. 1.482
  31. 5.44
  32. 0.144
  33. 5.78
  34. 1.708
  35. 0.427
  36. 0.602
  37. 4.08
  38. 0.203
  39. 2.639
  40. 1.248

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