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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 835 · 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. 1.0.31 × 3.6 =
  2. 2.0.25 × 3.5 =
  3. 3.4.1 × 0.9 =
  4. 4.0.03 × 1.8 =
  5. 5.0.94 × 0.3 =
  6. 6.0.62 × 1.2 =
  7. 7.7.5 × 2.8 =
  8. 8.0.22 × 1.1 =
  9. 9.1.3 × 0.3 =
  10. 10.0.73 × 3.4 =
  11. 11.0.31 × 2.4 =
  12. 12.0.03 × 3.7 =
  13. 13.0.92 × 3.9 =
  14. 14.2.9 × 0.13 =
  15. 15.7.9 × 2.9 =
  16. 16.0.68 × 1.1 =
  17. 17.9.2 × 0.05 =
  18. 18.5.4 × 0.11 =
  19. 19.4.3 × 0.4 =
  20. 20.6.2 × 0.25 =
  21. 21.0.78 × 2.1 =
  22. 22.0.44 × 1.6 =
  23. 23.0.87 × 2.1 =
  24. 24.0.26 × 1.2 =
  25. 25.6.2 × 0.4 =
  26. 26.1.8 × 3.3 =
  27. 27.1.9 × 3.3 =
  28. 28.0.31 × 3.1 =
  29. 29.2.6 × 0.22 =
  30. 30.0.42 × 2.7 =
  31. 31.5.9 × 0.08 =
  32. 32.0.91 × 1.1 =
  33. 33.0.39 × 1.3 =
  34. 34.0.93 × 3.5 =
  35. 35.0.21 × 2.7 =
  36. 36.0.17 × 1.7 =
  37. 37.2.4 × 0.33 =
  38. 38.8.2 × 1.8 =
  39. 39.0.84 × 3.5 =
  40. 40.7.3 × 0.15 =

Answer key

  1. 1.116
  2. 0.875
  3. 3.69
  4. 0.054
  5. 0.282
  6. 0.744
  7. 21
  8. 0.242
  9. 0.39
  10. 2.482
  11. 0.744
  12. 0.111
  13. 3.588
  14. 0.377
  15. 22.91
  16. 0.748
  17. 0.46
  18. 0.594
  19. 1.72
  20. 1.55
  21. 1.638
  22. 0.704
  23. 1.827
  24. 0.312
  25. 2.48
  26. 5.94
  27. 6.27
  28. 0.961
  29. 0.572
  30. 1.134
  31. 0.472
  32. 1.001
  33. 0.507
  34. 3.255
  35. 0.567
  36. 0.289
  37. 0.792
  38. 14.76
  39. 2.94
  40. 1.095

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