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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 508 · 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. 1.0.87 × 1.3 =
  2. 2.0.9 × 1.4 =
  3. 3.0.86 × 0.3 =
  4. 4.6.6 × 0.21 =
  5. 5.2.8 × 0.7 =
  6. 6.6.3 × 1.4 =
  7. 7.2.1 × 2.8 =
  8. 8.0.22 × 3.2 =
  9. 9.0.61 × 3.5 =
  10. 10.1.7 × 0.08 =
  11. 11.0.79 × 3.1 =
  12. 12.0.56 × 0.8 =
  13. 13.0.6 × 0.09 =
  14. 14.2.9 × 1.5 =
  15. 15.8.7 × 0.34 =
  16. 16.6.1 × 1.3 =
  17. 17.0.82 × 3.1 =
  18. 18.0.42 × 3.9 =
  19. 19.0.59 × 2.4 =
  20. 20.9.1 × 3.9 =
  21. 21.0.53 × 3.4 =
  22. 22.7.5 × 0.36 =
  23. 23.0.41 × 3.7 =
  24. 24.8.4 × 0.6 =
  25. 25.0.4 × 2.9 =
  26. 26.1.6 × 0.28 =
  27. 27.0.21 × 1.1 =
  28. 28.0.91 × 2.3 =
  29. 29.0.37 × 0.5 =
  30. 30.8.5 × 0.09 =
  31. 31.0.83 × 0.4 =
  32. 32.0.13 × 2.1 =
  33. 33.8.3 × 2.5 =
  34. 34.7.1 × 0.07 =
  35. 35.6.4 × 0.28 =
  36. 36.0.37 × 3.3 =
  37. 37.3.2 × 3.9 =
  38. 38.0.56 × 2.8 =
  39. 39.9.3 × 0.35 =
  40. 40.0.06 × 0.7 =

Answer key

  1. 1.131
  2. 1.26
  3. 0.258
  4. 1.386
  5. 1.96
  6. 8.82
  7. 5.88
  8. 0.704
  9. 2.135
  10. 0.136
  11. 2.449
  12. 0.448
  13. 0.054
  14. 4.35
  15. 2.958
  16. 7.93
  17. 2.542
  18. 1.638
  19. 1.416
  20. 35.49
  21. 1.802
  22. 2.7
  23. 1.517
  24. 5.04
  25. 1.16
  26. 0.448
  27. 0.231
  28. 2.093
  29. 0.185
  30. 0.765
  31. 0.332
  32. 0.273
  33. 20.75
  34. 0.497
  35. 1.792
  36. 1.221
  37. 12.48
  38. 1.568
  39. 3.255
  40. 0.042

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