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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 717 · 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. 1.0.09 × 0.2 =
  2. 2.2.3 × 1.5 =
  3. 3.0.65 × 0.6 =
  4. 4.0.19 × 1.1 =
  5. 5.0.07 × 0.9 =
  6. 6.0.2 × 0.21 =
  7. 7.0.41 × 0.2 =
  8. 8.1.5 × 2.8 =
  9. 9.1.9 × 0.6 =
  10. 10.1.1 × 2.6 =
  11. 11.0.44 × 2.5 =
  12. 12.0.36 × 2.3 =
  13. 13.8.9 × 3.9 =
  14. 14.4.6 × 1.9 =
  15. 15.5.7 × 0.3 =
  16. 16.0.22 × 3.6 =
  17. 17.0.36 × 0.4 =
  18. 18.0.22 × 2.1 =
  19. 19.6.1 × 0.21 =
  20. 20.6.4 × 0.17 =
  21. 21.0.94 × 3.3 =
  22. 22.3.1 × 2.8 =
  23. 23.8.8 × 0.5 =
  24. 24.5.1 × 1.9 =
  25. 25.6.8 × 1.3 =
  26. 26.0.89 × 2.7 =
  27. 27.9.5 × 3.1 =
  28. 28.9.1 × 0.21 =
  29. 29.7.6 × 1.1 =
  30. 30.0.66 × 3.8 =
  31. 31.0.88 × 1.3 =
  32. 32.0.78 × 0.9 =
  33. 33.2.2 × 2.6 =
  34. 34.8.9 × 0.31 =
  35. 35.7.2 × 0.9 =
  36. 36.2.9 × 0.2 =
  37. 37.0.09 × 3.8 =
  38. 38.4.5 × 0.34 =
  39. 39.1.2 × 0.03 =
  40. 40.6.1 × 1.4 =

Answer key

  1. 0.018
  2. 3.45
  3. 0.39
  4. 0.209
  5. 0.063
  6. 0.042
  7. 0.082
  8. 4.2
  9. 1.14
  10. 2.86
  11. 1.1
  12. 0.828
  13. 34.71
  14. 8.74
  15. 1.71
  16. 0.792
  17. 0.144
  18. 0.462
  19. 1.281
  20. 1.088
  21. 3.102
  22. 8.68
  23. 4.4
  24. 9.69
  25. 8.84
  26. 2.403
  27. 29.45
  28. 1.911
  29. 8.36
  30. 2.508
  31. 1.144
  32. 0.702
  33. 5.72
  34. 2.759
  35. 6.48
  36. 0.58
  37. 0.342
  38. 1.53
  39. 0.036
  40. 8.54

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