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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 617 · 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. 1.842² =
  2. 2.607² =
  3. 3.123² =
  4. 4.973² =
  5. 5.9450² =
  6. 6.2517² =
  7. 7.417² =
  8. 8.9727² =
  9. 9.791² =
  10. 10.734² =
  11. 11.4891² =
  12. 12.291² =
  13. 13.954² =
  14. 14.470² =
  15. 15.985² =
  16. 16.459² =
  17. 17.442² =
  18. 18.514² =
  19. 19.410² =
  20. 20.945² =
  21. 21.948² =
  22. 22.928² =
  23. 23.215² =
  24. 24.879² =
  25. 25.583² =
  26. 26.2914² =
  27. 27.6313² =
  28. 28.771² =
  29. 29.361² =
  30. 30.282² =
  31. 31.537² =
  32. 32.828² =
  33. 33.533² =
  34. 34.1517² =
  35. 35.179² =
  36. 36.671² =
  37. 37.949² =
  38. 38.299² =
  39. 39.402² =
  40. 40.7765² =

Answer key

  1. 708964
  2. 368449
  3. 15129
  4. 946729
  5. 89302500
  6. 6335289
  7. 173889
  8. 94614529
  9. 625681
  10. 538756
  11. 23921881
  12. 84681
  13. 910116
  14. 220900
  15. 970225
  16. 210681
  17. 195364
  18. 264196
  19. 168100
  20. 893025
  21. 898704
  22. 861184
  23. 46225
  24. 772641
  25. 339889
  26. 8491396
  27. 39853969
  28. 594441
  29. 130321
  30. 79524
  31. 288369
  32. 685584
  33. 284089
  34. 2301289
  35. 32041
  36. 450241
  37. 900601
  38. 89401
  39. 161604
  40. 60295225

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