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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 283 · 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. 1.9544² =
  2. 2.157² =
  3. 3.5853² =
  4. 4.990² =
  5. 5.9919² =
  6. 6.512² =
  7. 7.4251² =
  8. 8.438² =
  9. 9.208² =
  10. 10.656² =
  11. 11.562² =
  12. 12.6755² =
  13. 13.789² =
  14. 14.2110² =
  15. 15.4415² =
  16. 16.152² =
  17. 17.798² =
  18. 18.638² =
  19. 19.999² =
  20. 20.140² =
  21. 21.616² =
  22. 22.919² =
  23. 23.742² =
  24. 24.4089² =
  25. 25.316² =
  26. 26.135² =
  27. 27.775² =
  28. 28.350² =
  29. 29.998² =
  30. 30.617² =
  31. 31.463² =
  32. 32.1765² =
  33. 33.258² =
  34. 34.115² =
  35. 35.170² =
  36. 36.416² =
  37. 37.9828² =
  38. 38.317² =
  39. 39.181² =
  40. 40.841² =

Answer key

  1. 91087936
  2. 24649
  3. 34257609
  4. 980100
  5. 98386561
  6. 262144
  7. 18071001
  8. 191844
  9. 43264
  10. 430336
  11. 315844
  12. 45630025
  13. 622521
  14. 4452100
  15. 19492225
  16. 23104
  17. 636804
  18. 407044
  19. 998001
  20. 19600
  21. 379456
  22. 844561
  23. 550564
  24. 16719921
  25. 99856
  26. 18225
  27. 600625
  28. 122500
  29. 996004
  30. 380689
  31. 214369
  32. 3115225
  33. 66564
  34. 13225
  35. 28900
  36. 173056
  37. 96589584
  38. 100489
  39. 32761
  40. 707281

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