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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 853 · 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. 1.0.05 × 3.4 =
  2. 2.6.1 × 1.1 =
  3. 3.5.2 × 2.7 =
  4. 4.0.28 × 0.4 =
  5. 5.0.63 × 3.2 =
  6. 6.5.9 × 0.31 =
  7. 7.0.6 × 3.1 =
  8. 8.0.24 × 2.1 =
  9. 9.0.69 × 0.8 =
  10. 10.6.1 × 3.2 =
  11. 11.6.2 × 0.34 =
  12. 12.1.3 × 3.1 =
  13. 13.0.15 × 1.3 =
  14. 14.0.7 × 0.37 =
  15. 15.0.7 × 3.1 =
  16. 16.0.35 × 3.6 =
  17. 17.5.1 × 1.6 =
  18. 18.9.4 × 1.1 =
  19. 19.2.8 × 0.03 =
  20. 20.2.1 × 0.09 =
  21. 21.0.48 × 2.6 =
  22. 22.0.7 × 0.17 =
  23. 23.7.1 × 1.5 =
  24. 24.8.3 × 0.11 =
  25. 25.0.86 × 3.2 =
  26. 26.2.6 × 0.4 =
  27. 27.4.7 × 0.14 =
  28. 28.0.83 × 0.3 =
  29. 29.0.15 × 1.4 =
  30. 30.0.96 × 0.7 =
  31. 31.6.9 × 3.1 =
  32. 32.3.3 × 3.8 =
  33. 33.8.6 × 0.5 =
  34. 34.3.7 × 0.2 =
  35. 35.2.3 × 1.4 =
  36. 36.3.6 × 0.24 =
  37. 37.9.1 × 0.05 =
  38. 38.8.9 × 0.38 =
  39. 39.0.31 × 1.1 =
  40. 40.9.3 × 0.04 =

Answer key

  1. 0.17
  2. 6.71
  3. 14.04
  4. 0.112
  5. 2.016
  6. 1.829
  7. 1.86
  8. 0.504
  9. 0.552
  10. 19.52
  11. 2.108
  12. 4.03
  13. 0.195
  14. 0.259
  15. 2.17
  16. 1.26
  17. 8.16
  18. 10.34
  19. 0.084
  20. 0.189
  21. 1.248
  22. 0.119
  23. 10.65
  24. 0.913
  25. 2.752
  26. 1.04
  27. 0.658
  28. 0.249
  29. 0.21
  30. 0.672
  31. 21.39
  32. 12.54
  33. 4.3
  34. 0.74
  35. 3.22
  36. 0.864
  37. 0.455
  38. 3.382
  39. 0.341
  40. 0.372

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