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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 888 · 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. 1.0.64 × 3.6 =
  2. 2.0.24 × 1.3 =
  3. 3.1.2 × 0.07 =
  4. 4.0.81 × 3.2 =
  5. 5.8.1 × 0.34 =
  6. 6.0.86 × 0.3 =
  7. 7.0.04 × 3.3 =
  8. 8.2.1 × 0.31 =
  9. 9.0.47 × 0.2 =
  10. 10.6.5 × 3.2 =
  11. 11.0.42 × 1.7 =
  12. 12.9.1 × 2.2 =
  13. 13.0.11 × 1.3 =
  14. 14.0.09 × 2.2 =
  15. 15.0.71 × 1.4 =
  16. 16.0.04 × 3.8 =
  17. 17.0.16 × 2.1 =
  18. 18.2.1 × 1.1 =
  19. 19.0.68 × 1.1 =
  20. 20.0.72 × 1.2 =
  21. 21.0.5 × 0.34 =
  22. 22.4.7 × 2.2 =
  23. 23.0.86 × 1.7 =
  24. 24.4.6 × 0.9 =
  25. 25.0.11 × 2.5 =
  26. 26.1.5 × 1.3 =
  27. 27.5.1 × 3.1 =
  28. 28.9.6 × 0.29 =
  29. 29.0.97 × 3.2 =
  30. 30.0.27 × 3.6 =
  31. 31.0.83 × 2.1 =
  32. 32.3.8 × 1.9 =
  33. 33.0.51 × 0.9 =
  34. 34.0.5 × 0.11 =
  35. 35.0.21 × 0.9 =
  36. 36.0.88 × 3.9 =
  37. 37.3.1 × 0.24 =
  38. 38.0.08 × 2.7 =
  39. 39.8.4 × 0.33 =
  40. 40.8.7 × 0.3 =

Answer key

  1. 2.304
  2. 0.312
  3. 0.084
  4. 2.592
  5. 2.754
  6. 0.258
  7. 0.132
  8. 0.651
  9. 0.094
  10. 20.8
  11. 0.714
  12. 20.02
  13. 0.143
  14. 0.198
  15. 0.994
  16. 0.152
  17. 0.336
  18. 2.31
  19. 0.748
  20. 0.864
  21. 0.17
  22. 10.34
  23. 1.462
  24. 4.14
  25. 0.275
  26. 1.95
  27. 15.81
  28. 2.784
  29. 3.104
  30. 0.972
  31. 1.743
  32. 7.22
  33. 0.459
  34. 0.055
  35. 0.189
  36. 3.432
  37. 0.744
  38. 0.216
  39. 2.772
  40. 2.61

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