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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 10 · 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 × 1.6 =
  2. 2.0.44 × 3.6 =
  3. 3.2.1 × 0.2 =
  4. 4.5.8 × 0.02 =
  5. 5.0.83 × 3.6 =
  6. 6.0.04 × 0.7 =
  7. 7.0.79 × 1.5 =
  8. 8.0.28 × 0.4 =
  9. 9.5.1 × 2.8 =
  10. 10.5.7 × 0.08 =
  11. 11.6.5 × 0.25 =
  12. 12.1.9 × 0.22 =
  13. 13.0.23 × 1.6 =
  14. 14.6.3 × 2.3 =
  15. 15.2.7 × 1.9 =
  16. 16.9.3 × 2.8 =
  17. 17.7.1 × 3.1 =
  18. 18.0.14 × 0.7 =
  19. 19.0.89 × 0.7 =
  20. 20.0.5 × 0.7 =
  21. 21.1.1 × 0.37 =
  22. 22.8.5 × 0.28 =
  23. 23.0.83 × 2.7 =
  24. 24.2.1 × 0.05 =
  25. 25.1.1 × 0.23 =
  26. 26.0.79 × 1.6 =
  27. 27.0.03 × 1.6 =
  28. 28.0.24 × 2.3 =
  29. 29.5.5 × 0.4 =
  30. 30.0.11 × 1.2 =
  31. 31.0.58 × 3.1 =
  32. 32.3.4 × 2.1 =
  33. 33.6.8 × 2.6 =
  34. 34.4.5 × 0.6 =
  35. 35.0.87 × 1.3 =
  36. 36.0.62 × 3.1 =
  37. 37.0.41 × 2.6 =
  38. 38.4.5 × 0.08 =
  39. 39.0.8 × 2.2 =
  40. 40.0.75 × 0.4 =

Answer key

  1. 0.08
  2. 1.584
  3. 0.42
  4. 0.116
  5. 2.988
  6. 0.028
  7. 1.185
  8. 0.112
  9. 14.28
  10. 0.456
  11. 1.625
  12. 0.418
  13. 0.368
  14. 14.49
  15. 5.13
  16. 26.04
  17. 22.01
  18. 0.098
  19. 0.623
  20. 0.35
  21. 0.407
  22. 2.38
  23. 2.241
  24. 0.105
  25. 0.253
  26. 1.264
  27. 0.048
  28. 0.552
  29. 2.2
  30. 0.132
  31. 1.798
  32. 7.14
  33. 17.68
  34. 2.7
  35. 1.131
  36. 1.922
  37. 1.066
  38. 0.36
  39. 1.76
  40. 0.3

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