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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 776 · 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. 1.2000² =
  2. 2.8645² =
  3. 3.251² =
  4. 4.958² =
  5. 5.677² =
  6. 6.2531² =
  7. 7.2653² =
  8. 8.8794² =
  9. 9.428² =
  10. 10.264² =
  11. 11.998² =
  12. 12.7636² =
  13. 13.8966² =
  14. 14.359² =
  15. 15.884² =
  16. 16.2253² =
  17. 17.584² =
  18. 18.542² =
  19. 19.261² =
  20. 20.3867² =
  21. 21.689² =
  22. 22.658² =
  23. 23.6802² =
  24. 24.771² =
  25. 25.151² =
  26. 26.1679² =
  27. 27.732² =
  28. 28.600² =
  29. 29.658² =
  30. 30.6490² =
  31. 31.823² =
  32. 32.273² =
  33. 33.367² =
  34. 34.151² =
  35. 35.699² =
  36. 36.684² =
  37. 37.1306² =
  38. 38.425² =
  39. 39.7923² =
  40. 40.577² =

Answer key

  1. 4000000
  2. 74736025
  3. 63001
  4. 917764
  5. 458329
  6. 6405961
  7. 7038409
  8. 77334436
  9. 183184
  10. 69696
  11. 996004
  12. 58308496
  13. 80389156
  14. 128881
  15. 781456
  16. 5076009
  17. 341056
  18. 293764
  19. 68121
  20. 14953689
  21. 474721
  22. 432964
  23. 46267204
  24. 594441
  25. 22801
  26. 2819041
  27. 535824
  28. 360000
  29. 432964
  30. 42120100
  31. 677329
  32. 74529
  33. 134689
  34. 22801
  35. 488601
  36. 467856
  37. 1705636
  38. 180625
  39. 62773929
  40. 332929

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