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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 946 · 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. 1.0.43 × 0.9 =
  2. 2.6.5 × 3.2 =
  3. 3.0.53 × 2.9 =
  4. 4.9.5 × 1.4 =
  5. 5.3.2 × 0.38 =
  6. 6.0.24 × 1.6 =
  7. 7.2.1 × 1.3 =
  8. 8.8.8 × 0.11 =
  9. 9.0.13 × 1.1 =
  10. 10.7.9 × 0.7 =
  11. 11.1.5 × 0.36 =
  12. 12.0.41 × 3.3 =
  13. 13.0.16 × 0.5 =
  14. 14.0.7 × 0.21 =
  15. 15.3.2 × 2.5 =
  16. 16.0.91 × 0.2 =
  17. 17.5.8 × 0.19 =
  18. 18.1.9 × 0.17 =
  19. 19.9.4 × 0.09 =
  20. 20.0.94 × 2.3 =
  21. 21.0.55 × 1.3 =
  22. 22.0.71 × 3.1 =
  23. 23.0.96 × 0.3 =
  24. 24.2.2 × 2.4 =
  25. 25.6.3 × 0.2 =
  26. 26.4.5 × 0.4 =
  27. 27.0.28 × 0.5 =
  28. 28.8.2 × 0.3 =
  29. 29.0.88 × 0.9 =
  30. 30.0.79 × 3.2 =
  31. 31.1.1 × 1.2 =
  32. 32.0.95 × 2.6 =
  33. 33.0.9 × 3.8 =
  34. 34.0.96 × 1.2 =
  35. 35.0.21 × 3.2 =
  36. 36.1.4 × 0.3 =
  37. 37.2.7 × 0.02 =
  38. 38.9.4 × 0.03 =
  39. 39.0.5 × 1.2 =
  40. 40.6.6 × 0.11 =

Answer key

  1. 0.387
  2. 20.8
  3. 1.537
  4. 13.3
  5. 1.216
  6. 0.384
  7. 2.73
  8. 0.968
  9. 0.143
  10. 5.53
  11. 0.54
  12. 1.353
  13. 0.08
  14. 0.147
  15. 8
  16. 0.182
  17. 1.102
  18. 0.323
  19. 0.846
  20. 2.162
  21. 0.715
  22. 2.201
  23. 0.288
  24. 5.28
  25. 1.26
  26. 1.8
  27. 0.14
  28. 2.46
  29. 0.792
  30. 2.528
  31. 1.32
  32. 2.47
  33. 3.42
  34. 1.152
  35. 0.672
  36. 0.42
  37. 0.054
  38. 0.282
  39. 0.6
  40. 0.726

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