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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 619 · 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. 1.586² =
  2. 2.661² =
  3. 3.487² =
  4. 4.4371² =
  5. 5.723² =
  6. 6.296² =
  7. 7.298² =
  8. 8.1149² =
  9. 9.746² =
  10. 10.500² =
  11. 11.3030² =
  12. 12.3193² =
  13. 13.441² =
  14. 14.894² =
  15. 15.185² =
  16. 16.2251² =
  17. 17.342² =
  18. 18.637² =
  19. 19.3361² =
  20. 20.764² =
  21. 21.969² =
  22. 22.8885² =
  23. 23.269² =
  24. 24.3194² =
  25. 25.726² =
  26. 26.2840² =
  27. 27.575² =
  28. 28.446² =
  29. 29.979² =
  30. 30.193² =
  31. 31.123² =
  32. 32.984² =
  33. 33.887² =
  34. 34.675² =
  35. 35.775² =
  36. 36.1635² =
  37. 37.734² =
  38. 38.573² =
  39. 39.239² =
  40. 40.7941² =

Answer key

  1. 343396
  2. 436921
  3. 237169
  4. 19105641
  5. 522729
  6. 87616
  7. 88804
  8. 1320201
  9. 556516
  10. 250000
  11. 9180900
  12. 10195249
  13. 194481
  14. 799236
  15. 34225
  16. 5067001
  17. 116964
  18. 405769
  19. 11296321
  20. 583696
  21. 938961
  22. 78943225
  23. 72361
  24. 10201636
  25. 527076
  26. 8065600
  27. 330625
  28. 198916
  29. 958441
  30. 37249
  31. 15129
  32. 968256
  33. 786769
  34. 455625
  35. 600625
  36. 2673225
  37. 538756
  38. 328329
  39. 57121
  40. 63059481

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