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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 771 · 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. 1.1287² =
  2. 2.9963² =
  3. 3.6480² =
  4. 4.108² =
  5. 5.9740² =
  6. 6.2145² =
  7. 7.903² =
  8. 8.654² =
  9. 9.1978² =
  10. 10.721² =
  11. 11.2508² =
  12. 12.6941² =
  13. 13.340² =
  14. 14.939² =
  15. 15.8891² =
  16. 16.118² =
  17. 17.695² =
  18. 18.721² =
  19. 19.144² =
  20. 20.397² =
  21. 21.131² =
  22. 22.3414² =
  23. 23.978² =
  24. 24.263² =
  25. 25.736² =
  26. 26.3384² =
  27. 27.8823² =
  28. 28.1076² =
  29. 29.7351² =
  30. 30.803² =
  31. 31.5765² =
  32. 32.7813² =
  33. 33.7925² =
  34. 34.826² =
  35. 35.353² =
  36. 36.425² =
  37. 37.8842² =
  38. 38.318² =
  39. 39.299² =
  40. 40.470² =

Answer key

  1. 1656369
  2. 99261369
  3. 41990400
  4. 11664
  5. 94867600
  6. 4601025
  7. 815409
  8. 427716
  9. 3912484
  10. 519841
  11. 6290064
  12. 48177481
  13. 115600
  14. 881721
  15. 79049881
  16. 13924
  17. 483025
  18. 519841
  19. 20736
  20. 157609
  21. 17161
  22. 11655396
  23. 956484
  24. 69169
  25. 541696
  26. 11451456
  27. 77845329
  28. 1157776
  29. 54037201
  30. 644809
  31. 33235225
  32. 61042969
  33. 62805625
  34. 682276
  35. 124609
  36. 180625
  37. 78180964
  38. 101124
  39. 89401
  40. 220900

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