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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 150 · 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. 1.0.54 × 1.2 =
  2. 2.1.3 × 0.8 =
  3. 3.0.31 × 3.1 =
  4. 4.7.3 × 0.18 =
  5. 5.5.6 × 1.5 =
  6. 6.5.9 × 0.24 =
  7. 7.8.5 × 0.29 =
  8. 8.3.1 × 3.3 =
  9. 9.5.9 × 1.1 =
  10. 10.0.61 × 0.4 =
  11. 11.4.2 × 0.21 =
  12. 12.0.98 × 2.1 =
  13. 13.6.5 × 0.07 =
  14. 14.5.4 × 2.7 =
  15. 15.0.18 × 2.5 =
  16. 16.1.4 × 3.3 =
  17. 17.0.17 × 3.7 =
  18. 18.8.1 × 3.6 =
  19. 19.7.8 × 0.34 =
  20. 20.9.2 × 3.7 =
  21. 21.0.27 × 2.4 =
  22. 22.7.7 × 3.2 =
  23. 23.4.8 × 2.6 =
  24. 24.0.22 × 0.3 =
  25. 25.0.59 × 2.2 =
  26. 26.0.4 × 0.27 =
  27. 27.6.9 × 3.4 =
  28. 28.0.53 × 3.6 =
  29. 29.1.6 × 0.37 =
  30. 30.0.38 × 1.1 =
  31. 31.0.46 × 0.3 =
  32. 32.0.17 × 1.8 =
  33. 33.2.9 × 0.23 =
  34. 34.0.92 × 0.7 =
  35. 35.4.3 × 2.6 =
  36. 36.4.3 × 2.9 =
  37. 37.0.17 × 1.9 =
  38. 38.9.5 × 0.05 =
  39. 39.4.3 × 0.07 =
  40. 40.8.4 × 1.2 =

Answer key

  1. 0.648
  2. 1.04
  3. 0.961
  4. 1.314
  5. 8.4
  6. 1.416
  7. 2.465
  8. 10.23
  9. 6.49
  10. 0.244
  11. 0.882
  12. 2.058
  13. 0.455
  14. 14.58
  15. 0.45
  16. 4.62
  17. 0.629
  18. 29.16
  19. 2.652
  20. 34.04
  21. 0.648
  22. 24.64
  23. 12.48
  24. 0.066
  25. 1.298
  26. 0.108
  27. 23.46
  28. 1.908
  29. 0.592
  30. 0.418
  31. 0.138
  32. 0.306
  33. 0.667
  34. 0.644
  35. 11.18
  36. 12.47
  37. 0.323
  38. 0.475
  39. 0.301
  40. 10.08

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