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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 259 · 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. 1.8.3 × 2.6 =
  2. 2.9.8 × 1.1 =
  3. 3.9.4 × 0.36 =
  4. 4.9.9 × 1.6 =
  5. 5.3.8 × 0.03 =
  6. 6.0.35 × 1.2 =
  7. 7.0.4 × 3.9 =
  8. 8.3.3 × 1.4 =
  9. 9.0.61 × 1.1 =
  10. 10.0.41 × 1.7 =
  11. 11.2.7 × 0.05 =
  12. 12.0.33 × 3.7 =
  13. 13.3.1 × 0.28 =
  14. 14.0.91 × 2.1 =
  15. 15.0.4 × 0.18 =
  16. 16.2.1 × 0.31 =
  17. 17.7.1 × 0.14 =
  18. 18.0.92 × 0.7 =
  19. 19.0.77 × 0.6 =
  20. 20.0.81 × 2.9 =
  21. 21.3.2 × 2.1 =
  22. 22.0.31 × 1.2 =
  23. 23.4.5 × 0.11 =
  24. 24.0.5 × 0.14 =
  25. 25.1.2 × 0.14 =
  26. 26.0.81 × 3.1 =
  27. 27.0.19 × 2.3 =
  28. 28.9.7 × 0.7 =
  29. 29.0.39 × 1.5 =
  30. 30.6.9 × 0.11 =
  31. 31.8.1 × 0.21 =
  32. 32.3.9 × 0.8 =
  33. 33.0.48 × 3.6 =
  34. 34.0.85 × 0.3 =
  35. 35.6.4 × 0.28 =
  36. 36.3.6 × 0.05 =
  37. 37.0.37 × 1.2 =
  38. 38.0.64 × 1.1 =
  39. 39.6.3 × 0.23 =
  40. 40.2.7 × 0.03 =

Answer key

  1. 21.58
  2. 10.78
  3. 3.384
  4. 15.84
  5. 0.114
  6. 0.42
  7. 1.56
  8. 4.62
  9. 0.671
  10. 0.697
  11. 0.135
  12. 1.221
  13. 0.868
  14. 1.911
  15. 0.072
  16. 0.651
  17. 0.994
  18. 0.644
  19. 0.462
  20. 2.349
  21. 6.72
  22. 0.372
  23. 0.495
  24. 0.07
  25. 0.168
  26. 2.511
  27. 0.437
  28. 6.79
  29. 0.585
  30. 0.759
  31. 1.701
  32. 3.12
  33. 1.728
  34. 0.255
  35. 1.792
  36. 0.18
  37. 0.444
  38. 0.704
  39. 1.449
  40. 0.081

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