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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 359 · 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. 1.0.12 × 0.3 =
  2. 2.0.8 × 0.3 =
  3. 3.0.52 × 0.8 =
  4. 4.0.14 × 1.4 =
  5. 5.1.9 × 0.05 =
  6. 6.1.1 × 0.21 =
  7. 7.0.41 × 3.8 =
  8. 8.6.8 × 0.05 =
  9. 9.6.2 × 2.3 =
  10. 10.1.1 × 0.12 =
  11. 11.3.1 × 0.11 =
  12. 12.8.1 × 0.31 =
  13. 13.0.42 × 1.9 =
  14. 14.0.49 × 1.8 =
  15. 15.9.9 × 1.1 =
  16. 16.1.6 × 0.33 =
  17. 17.4.2 × 0.08 =
  18. 18.6.5 × 0.7 =
  19. 19.0.24 × 0.8 =
  20. 20.0.38 × 0.2 =
  21. 21.1.5 × 0.26 =
  22. 22.0.88 × 0.8 =
  23. 23.3.8 × 0.31 =
  24. 24.0.29 × 3.1 =
  25. 25.0.31 × 2.7 =
  26. 26.0.84 × 1.1 =
  27. 27.0.11 × 2.6 =
  28. 28.0.24 × 3.1 =
  29. 29.3.1 × 0.6 =
  30. 30.4.3 × 0.7 =
  31. 31.6.9 × 0.24 =
  32. 32.4.5 × 0.25 =
  33. 33.0.98 × 0.9 =
  34. 34.5.5 × 0.36 =
  35. 35.3.1 × 0.33 =
  36. 36.0.89 × 1.1 =
  37. 37.7.1 × 1.4 =
  38. 38.7.4 × 1.7 =
  39. 39.2.1 × 0.36 =
  40. 40.9.3 × 0.09 =

Answer key

  1. 0.036
  2. 0.24
  3. 0.416
  4. 0.196
  5. 0.095
  6. 0.231
  7. 1.558
  8. 0.34
  9. 14.26
  10. 0.132
  11. 0.341
  12. 2.511
  13. 0.798
  14. 0.882
  15. 10.89
  16. 0.528
  17. 0.336
  18. 4.55
  19. 0.192
  20. 0.076
  21. 0.39
  22. 0.704
  23. 1.178
  24. 0.899
  25. 0.837
  26. 0.924
  27. 0.286
  28. 0.744
  29. 1.86
  30. 3.01
  31. 1.656
  32. 1.125
  33. 0.882
  34. 1.98
  35. 1.023
  36. 0.979
  37. 9.94
  38. 12.58
  39. 0.756
  40. 0.837

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