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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 600 · 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. 1.403² =
  2. 2.9481² =
  3. 3.862² =
  4. 4.325² =
  5. 5.844² =
  6. 6.9731² =
  7. 7.7755² =
  8. 8.1205² =
  9. 9.283² =
  10. 10.3873² =
  11. 11.679² =
  12. 12.364² =
  13. 13.1977² =
  14. 14.292² =
  15. 15.585² =
  16. 16.635² =
  17. 17.461² =
  18. 18.8083² =
  19. 19.761² =
  20. 20.758² =
  21. 21.725² =
  22. 22.4119² =
  23. 23.582² =
  24. 24.8513² =
  25. 25.757² =
  26. 26.404² =
  27. 27.542² =
  28. 28.320² =
  29. 29.549² =
  30. 30.922² =
  31. 31.997² =
  32. 32.183² =
  33. 33.401² =
  34. 34.754² =
  35. 35.335² =
  36. 36.143² =
  37. 37.9205² =
  38. 38.401² =
  39. 39.969² =
  40. 40.794² =

Answer key

  1. 162409
  2. 89889361
  3. 743044
  4. 105625
  5. 712336
  6. 94692361
  7. 60140025
  8. 1452025
  9. 80089
  10. 15000129
  11. 461041
  12. 132496
  13. 3908529
  14. 85264
  15. 342225
  16. 403225
  17. 212521
  18. 65334889
  19. 579121
  20. 574564
  21. 525625
  22. 16966161
  23. 338724
  24. 72471169
  25. 573049
  26. 163216
  27. 293764
  28. 102400
  29. 301401
  30. 850084
  31. 994009
  32. 33489
  33. 160801
  34. 568516
  35. 112225
  36. 20449
  37. 84732025
  38. 160801
  39. 938961
  40. 630436

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