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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 850 · 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. 1.885² =
  2. 2.2624² =
  3. 3.7121² =
  4. 4.3265² =
  5. 5.8997² =
  6. 6.803² =
  7. 7.154² =
  8. 8.3235² =
  9. 9.1100² =
  10. 10.287² =
  11. 11.785² =
  12. 12.6412² =
  13. 13.506² =
  14. 14.575² =
  15. 15.545² =
  16. 16.3089² =
  17. 17.4593² =
  18. 18.580² =
  19. 19.397² =
  20. 20.436² =
  21. 21.542² =
  22. 22.571² =
  23. 23.131² =
  24. 24.1606² =
  25. 25.310² =
  26. 26.1759² =
  27. 27.133² =
  28. 28.119² =
  29. 29.3936² =
  30. 30.350² =
  31. 31.856² =
  32. 32.8296² =
  33. 33.2324² =
  34. 34.9278² =
  35. 35.3864² =
  36. 36.695² =
  37. 37.460² =
  38. 38.712² =
  39. 39.151² =
  40. 40.8946² =

Answer key

  1. 783225
  2. 6885376
  3. 50708641
  4. 10660225
  5. 80946009
  6. 644809
  7. 23716
  8. 10465225
  9. 1210000
  10. 82369
  11. 616225
  12. 41113744
  13. 256036
  14. 330625
  15. 297025
  16. 9541921
  17. 21095649
  18. 336400
  19. 157609
  20. 190096
  21. 293764
  22. 326041
  23. 17161
  24. 2579236
  25. 96100
  26. 3094081
  27. 17689
  28. 14161
  29. 15492096
  30. 122500
  31. 732736
  32. 68823616
  33. 5400976
  34. 86081284
  35. 14930496
  36. 483025
  37. 211600
  38. 506944
  39. 22801
  40. 80030916

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