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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 82 · 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. 1.230² =
  2. 2.596² =
  3. 3.489² =
  4. 4.9683² =
  5. 5.168² =
  6. 6.1743² =
  7. 7.4815² =
  8. 8.155² =
  9. 9.957² =
  10. 10.910² =
  11. 11.2866² =
  12. 12.3977² =
  13. 13.9340² =
  14. 14.557² =
  15. 15.295² =
  16. 16.114² =
  17. 17.1781² =
  18. 18.6991² =
  19. 19.4851² =
  20. 20.2230² =
  21. 21.629² =
  22. 22.980² =
  23. 23.322² =
  24. 24.989² =
  25. 25.721² =
  26. 26.729² =
  27. 27.3945² =
  28. 28.1942² =
  29. 29.216² =
  30. 30.402² =
  31. 31.961² =
  32. 32.479² =
  33. 33.468² =
  34. 34.750² =
  35. 35.227² =
  36. 36.236² =
  37. 37.3368² =
  38. 38.822² =
  39. 39.817² =
  40. 40.703² =

Answer key

  1. 52900
  2. 355216
  3. 239121
  4. 93760489
  5. 28224
  6. 3038049
  7. 23184225
  8. 24025
  9. 915849
  10. 828100
  11. 8213956
  12. 15816529
  13. 87235600
  14. 310249
  15. 87025
  16. 12996
  17. 3171961
  18. 48874081
  19. 23532201
  20. 4972900
  21. 395641
  22. 960400
  23. 103684
  24. 978121
  25. 519841
  26. 531441
  27. 15563025
  28. 3771364
  29. 46656
  30. 161604
  31. 923521
  32. 229441
  33. 219024
  34. 562500
  35. 51529
  36. 55696
  37. 11343424
  38. 675684
  39. 667489
  40. 494209

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