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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 356 · 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. 1.726² =
  2. 2.482² =
  3. 3.621² =
  4. 4.323² =
  5. 5.697² =
  6. 6.9142² =
  7. 7.7782² =
  8. 8.8096² =
  9. 9.793² =
  10. 10.578² =
  11. 11.406² =
  12. 12.744² =
  13. 13.815² =
  14. 14.266² =
  15. 15.3644² =
  16. 16.706² =
  17. 17.130² =
  18. 18.927² =
  19. 19.886² =
  20. 20.9198² =
  21. 21.581² =
  22. 22.272² =
  23. 23.328² =
  24. 24.2949² =
  25. 25.969² =
  26. 26.173² =
  27. 27.726² =
  28. 28.8811² =
  29. 29.363² =
  30. 30.980² =
  31. 31.490² =
  32. 32.8592² =
  33. 33.4785² =
  34. 34.491² =
  35. 35.631² =
  36. 36.117² =
  37. 37.379² =
  38. 38.965² =
  39. 39.357² =
  40. 40.821² =

Answer key

  1. 527076
  2. 232324
  3. 385641
  4. 104329
  5. 485809
  6. 83576164
  7. 60559524
  8. 65545216
  9. 628849
  10. 334084
  11. 164836
  12. 553536
  13. 664225
  14. 70756
  15. 13278736
  16. 498436
  17. 16900
  18. 859329
  19. 784996
  20. 84603204
  21. 337561
  22. 73984
  23. 107584
  24. 8696601
  25. 938961
  26. 29929
  27. 527076
  28. 77633721
  29. 131769
  30. 960400
  31. 240100
  32. 73822464
  33. 22896225
  34. 241081
  35. 398161
  36. 13689
  37. 143641
  38. 931225
  39. 127449
  40. 674041

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