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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 507 · 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. 1.0.28 × 0.7 =
  2. 2.0.62 × 2.9 =
  3. 3.6.5 × 0.2 =
  4. 4.4.7 × 2.7 =
  5. 5.0.12 × 2.9 =
  6. 6.1.3 × 0.35 =
  7. 7.8.4 × 3.6 =
  8. 8.9.1 × 1.8 =
  9. 9.0.11 × 2.7 =
  10. 10.0.4 × 2.7 =
  11. 11.7.7 × 0.22 =
  12. 12.7.1 × 3.7 =
  13. 13.3.5 × 2.8 =
  14. 14.0.35 × 3.4 =
  15. 15.0.32 × 1.9 =
  16. 16.0.53 × 1.5 =
  17. 17.0.31 × 2.5 =
  18. 18.0.38 × 3.9 =
  19. 19.0.39 × 2.1 =
  20. 20.0.24 × 3.1 =
  21. 21.2.9 × 3.4 =
  22. 22.0.2 × 2.7 =
  23. 23.2.8 × 0.07 =
  24. 24.4.5 × 0.7 =
  25. 25.7.3 × 0.28 =
  26. 26.7.7 × 0.5 =
  27. 27.6.6 × 1.1 =
  28. 28.6.8 × 0.37 =
  29. 29.0.02 × 1.4 =
  30. 30.0.91 × 2.6 =
  31. 31.5.9 × 1.1 =
  32. 32.0.29 × 2.6 =
  33. 33.0.26 × 3.8 =
  34. 34.7.9 × 1.4 =
  35. 35.0.97 × 3.7 =
  36. 36.7.1 × 1.2 =
  37. 37.0.76 × 1.1 =
  38. 38.3.5 × 0.3 =
  39. 39.2.7 × 0.15 =
  40. 40.0.17 × 0.3 =

Answer key

  1. 0.196
  2. 1.798
  3. 1.3
  4. 12.69
  5. 0.348
  6. 0.455
  7. 30.24
  8. 16.38
  9. 0.297
  10. 1.08
  11. 1.694
  12. 26.27
  13. 9.8
  14. 1.19
  15. 0.608
  16. 0.795
  17. 0.775
  18. 1.482
  19. 0.819
  20. 0.744
  21. 9.86
  22. 0.54
  23. 0.196
  24. 3.15
  25. 2.044
  26. 3.85
  27. 7.26
  28. 2.516
  29. 0.028
  30. 2.366
  31. 6.49
  32. 0.754
  33. 0.988
  34. 11.06
  35. 3.589
  36. 8.52
  37. 0.836
  38. 1.05
  39. 0.405
  40. 0.051

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