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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 757 · 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. 1.4.4 × 2.6 =
  2. 2.0.08 × 0.6 =
  3. 3.2.9 × 0.03 =
  4. 4.4.2 × 0.17 =
  5. 5.3.9 × 0.06 =
  6. 6.7.8 × 2.9 =
  7. 7.1.3 × 0.02 =
  8. 8.0.53 × 3.5 =
  9. 9.0.54 × 0.4 =
  10. 10.0.21 × 3.3 =
  11. 11.6.5 × 1.1 =
  12. 12.0.5 × 0.2 =
  13. 13.5.3 × 0.06 =
  14. 14.3.1 × 0.05 =
  15. 15.2.8 × 0.4 =
  16. 16.2.1 × 0.34 =
  17. 17.6.1 × 0.22 =
  18. 18.0.41 × 1.1 =
  19. 19.0.47 × 1.6 =
  20. 20.0.12 × 0.5 =
  21. 21.8.3 × 0.18 =
  22. 22.0.73 × 1.5 =
  23. 23.2.1 × 1.1 =
  24. 24.9.5 × 1.5 =
  25. 25.0.29 × 1.3 =
  26. 26.4.5 × 1.7 =
  27. 27.5.9 × 2.9 =
  28. 28.0.2 × 0.39 =
  29. 29.1.1 × 0.11 =
  30. 30.0.17 × 2.2 =
  31. 31.1.1 × 2.6 =
  32. 32.0.26 × 3.1 =
  33. 33.0.96 × 2.2 =
  34. 34.0.47 × 3.8 =
  35. 35.1.6 × 0.28 =
  36. 36.5.7 × 2.8 =
  37. 37.4.7 × 0.09 =
  38. 38.2.6 × 3.1 =
  39. 39.0.36 × 0.4 =
  40. 40.9.4 × 2.1 =

Answer key

  1. 11.44
  2. 0.048
  3. 0.087
  4. 0.714
  5. 0.234
  6. 22.62
  7. 0.026
  8. 1.855
  9. 0.216
  10. 0.693
  11. 7.15
  12. 0.1
  13. 0.318
  14. 0.155
  15. 1.12
  16. 0.714
  17. 1.342
  18. 0.451
  19. 0.752
  20. 0.06
  21. 1.494
  22. 1.095
  23. 2.31
  24. 14.25
  25. 0.377
  26. 7.65
  27. 17.11
  28. 0.078
  29. 0.121
  30. 0.374
  31. 2.86
  32. 0.806
  33. 2.112
  34. 1.786
  35. 0.448
  36. 15.96
  37. 0.423
  38. 8.06
  39. 0.144
  40. 19.74

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