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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 595 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.3189² =
  2. 2.793² =
  3. 3.1491² =
  4. 4.282² =
  5. 5.573² =
  6. 6.779² =
  7. 7.8698² =
  8. 8.3378² =
  9. 9.987² =
  10. 10.156² =
  11. 11.9229² =
  12. 12.848² =
  13. 13.947² =
  14. 14.3658² =
  15. 15.156² =
  16. 16.908² =
  17. 17.4710² =
  18. 18.779² =
  19. 19.6210² =
  20. 20.196² =
  21. 21.815² =
  22. 22.541² =
  23. 23.299² =
  24. 24.196² =
  25. 25.328² =
  26. 26.567² =
  27. 27.465² =
  28. 28.8354² =
  29. 29.136² =
  30. 30.505² =
  31. 31.6523² =
  32. 32.265² =
  33. 33.246² =
  34. 34.494² =
  35. 35.352² =
  36. 36.280² =
  37. 37.542² =
  38. 38.279² =
  39. 39.9433² =
  40. 40.233² =

Answer key

  1. 10169721
  2. 628849
  3. 2223081
  4. 79524
  5. 328329
  6. 606841
  7. 75655204
  8. 11410884
  9. 974169
  10. 24336
  11. 85174441
  12. 719104
  13. 896809
  14. 13380964
  15. 24336
  16. 824464
  17. 22184100
  18. 606841
  19. 38564100
  20. 38416
  21. 664225
  22. 292681
  23. 89401
  24. 38416
  25. 107584
  26. 321489
  27. 216225
  28. 69789316
  29. 18496
  30. 255025
  31. 42549529
  32. 70225
  33. 60516
  34. 244036
  35. 123904
  36. 78400
  37. 293764
  38. 77841
  39. 88981489
  40. 54289

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