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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 292 · 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. 1.4.9 × 1.9 =
  2. 2.1.1 × 0.8 =
  3. 3.8.5 × 0.5 =
  4. 4.0.42 × 3.8 =
  5. 5.0.84 × 1.3 =
  6. 6.0.92 × 1.1 =
  7. 7.0.2 × 0.16 =
  8. 8.0.5 × 1.7 =
  9. 9.8.3 × 2.5 =
  10. 10.0.89 × 2.6 =
  11. 11.5.1 × 3.1 =
  12. 12.0.04 × 2.1 =
  13. 13.0.5 × 0.8 =
  14. 14.3.6 × 1.4 =
  15. 15.0.51 × 3.8 =
  16. 16.3.9 × 1.8 =
  17. 17.0.66 × 1.3 =
  18. 18.0.65 × 3.3 =
  19. 19.0.12 × 1.1 =
  20. 20.0.11 × 0.5 =
  21. 21.0.11 × 0.5 =
  22. 22.0.81 × 0.6 =
  23. 23.0.89 × 3.3 =
  24. 24.0.12 × 0.8 =
  25. 25.3.7 × 0.5 =
  26. 26.0.84 × 3.5 =
  27. 27.0.22 × 0.4 =
  28. 28.0.32 × 3.7 =
  29. 29.0.6 × 2.3 =
  30. 30.0.13 × 3.8 =
  31. 31.0.94 × 0.3 =
  32. 32.0.74 × 1.2 =
  33. 33.9.4 × 0.35 =
  34. 34.0.81 × 1.6 =
  35. 35.1.8 × 0.11 =
  36. 36.0.86 × 1.3 =
  37. 37.9.4 × 1.1 =
  38. 38.0.54 × 3.7 =
  39. 39.0.09 × 0.4 =
  40. 40.0.58 × 0.5 =

Answer key

  1. 9.31
  2. 0.88
  3. 4.25
  4. 1.596
  5. 1.092
  6. 1.012
  7. 0.032
  8. 0.85
  9. 20.75
  10. 2.314
  11. 15.81
  12. 0.084
  13. 0.4
  14. 5.04
  15. 1.938
  16. 7.02
  17. 0.858
  18. 2.145
  19. 0.132
  20. 0.055
  21. 0.055
  22. 0.486
  23. 2.937
  24. 0.096
  25. 1.85
  26. 2.94
  27. 0.088
  28. 1.184
  29. 1.38
  30. 0.494
  31. 0.282
  32. 0.888
  33. 3.29
  34. 1.296
  35. 0.198
  36. 1.118
  37. 10.34
  38. 1.998
  39. 0.036
  40. 0.29

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