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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 561 · 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. 1.2.4 × 0.16 =
  2. 2.5.1 × 0.05 =
  3. 3.0.78 × 1.1 =
  4. 4.2.7 × 0.4 =
  5. 5.0.4 × 2.6 =
  6. 6.0.61 × 2.3 =
  7. 7.0.57 × 2.2 =
  8. 8.0.4 × 1.4 =
  9. 9.0.48 × 1.5 =
  10. 10.3.5 × 0.15 =
  11. 11.4.2 × 2.9 =
  12. 12.0.11 × 1.5 =
  13. 13.7.8 × 0.7 =
  14. 14.3.9 × 0.2 =
  15. 15.6.4 × 0.26 =
  16. 16.1.3 × 1.6 =
  17. 17.0.03 × 1.1 =
  18. 18.6.4 × 0.26 =
  19. 19.7.3 × 0.11 =
  20. 20.4.6 × 0.22 =
  21. 21.0.36 × 2.7 =
  22. 22.0.69 × 3.9 =
  23. 23.0.64 × 2.5 =
  24. 24.0.12 × 2.1 =
  25. 25.0.45 × 0.9 =
  26. 26.5.1 × 0.3 =
  27. 27.9.7 × 1.1 =
  28. 28.3.7 × 0.31 =
  29. 29.0.76 × 1.6 =
  30. 30.6.1 × 2.3 =
  31. 31.0.74 × 0.2 =
  32. 32.0.14 × 3.1 =
  33. 33.2.1 × 2.5 =
  34. 34.0.15 × 1.3 =
  35. 35.6.3 × 0.04 =
  36. 36.6.4 × 0.17 =
  37. 37.5.4 × 0.34 =
  38. 38.0.34 × 2.1 =
  39. 39.7.2 × 0.15 =
  40. 40.1.1 × 0.36 =

Answer key

  1. 0.384
  2. 0.255
  3. 0.858
  4. 1.08
  5. 1.04
  6. 1.403
  7. 1.254
  8. 0.56
  9. 0.72
  10. 0.525
  11. 12.18
  12. 0.165
  13. 5.46
  14. 0.78
  15. 1.664
  16. 2.08
  17. 0.033
  18. 1.664
  19. 0.803
  20. 1.012
  21. 0.972
  22. 2.691
  23. 1.6
  24. 0.252
  25. 0.405
  26. 1.53
  27. 10.67
  28. 1.147
  29. 1.216
  30. 14.03
  31. 0.148
  32. 0.434
  33. 5.25
  34. 0.195
  35. 0.252
  36. 1.088
  37. 1.836
  38. 0.714
  39. 1.08
  40. 0.396

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