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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 633 · 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. 1.0.71 × 3.9 =
  2. 2.0.76 × 0.2 =
  3. 3.0.81 × 0.4 =
  4. 4.0.17 × 2.3 =
  5. 5.8.8 × 3.1 =
  6. 6.0.42 × 2.2 =
  7. 7.2.5 × 0.6 =
  8. 8.0.21 × 0.5 =
  9. 9.9.3 × 0.08 =
  10. 10.1.8 × 2.3 =
  11. 11.3.2 × 2.1 =
  12. 12.0.96 × 1.6 =
  13. 13.0.7 × 0.9 =
  14. 14.0.9 × 2.4 =
  15. 15.0.26 × 1.8 =
  16. 16.0.12 × 2.1 =
  17. 17.0.4 × 0.5 =
  18. 18.0.3 × 1.7 =
  19. 19.0.98 × 2.2 =
  20. 20.9.6 × 0.34 =
  21. 21.5.8 × 1.3 =
  22. 22.6.9 × 0.8 =
  23. 23.3.3 × 1.3 =
  24. 24.0.51 × 0.2 =
  25. 25.0.61 × 0.4 =
  26. 26.0.29 × 0.3 =
  27. 27.2.8 × 0.13 =
  28. 28.0.27 × 2.2 =
  29. 29.8.2 × 0.11 =
  30. 30.0.4 × 0.2 =
  31. 31.0.56 × 0.3 =
  32. 32.4.9 × 3.3 =
  33. 33.5.2 × 0.11 =
  34. 34.0.96 × 0.6 =
  35. 35.0.21 × 2.4 =
  36. 36.5.1 × 0.27 =
  37. 37.4.9 × 1.4 =
  38. 38.0.86 × 0.4 =
  39. 39.4.6 × 0.6 =
  40. 40.0.12 × 3.1 =

Answer key

  1. 2.769
  2. 0.152
  3. 0.324
  4. 0.391
  5. 27.28
  6. 0.924
  7. 1.5
  8. 0.105
  9. 0.744
  10. 4.14
  11. 6.72
  12. 1.536
  13. 0.63
  14. 2.16
  15. 0.468
  16. 0.252
  17. 0.2
  18. 0.51
  19. 2.156
  20. 3.264
  21. 7.54
  22. 5.52
  23. 4.29
  24. 0.102
  25. 0.244
  26. 0.087
  27. 0.364
  28. 0.594
  29. 0.902
  30. 0.08
  31. 0.168
  32. 16.17
  33. 0.572
  34. 0.576
  35. 0.504
  36. 1.377
  37. 6.86
  38. 0.344
  39. 2.76
  40. 0.372

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