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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 487 · 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. 1.746² =
  2. 2.3740² =
  3. 3.298² =
  4. 4.547² =
  5. 5.178² =
  6. 6.2899² =
  7. 7.978² =
  8. 8.801² =
  9. 9.889² =
  10. 10.5848² =
  11. 11.3430² =
  12. 12.874² =
  13. 13.135² =
  14. 14.820² =
  15. 15.214² =
  16. 16.327² =
  17. 17.2091² =
  18. 18.965² =
  19. 19.765² =
  20. 20.161² =
  21. 21.183² =
  22. 22.301² =
  23. 23.825² =
  24. 24.822² =
  25. 25.5399² =
  26. 26.126² =
  27. 27.7292² =
  28. 28.369² =
  29. 29.6054² =
  30. 30.159² =
  31. 31.6618² =
  32. 32.846² =
  33. 33.7298² =
  34. 34.766² =
  35. 35.3412² =
  36. 36.2910² =
  37. 37.670² =
  38. 38.431² =
  39. 39.9019² =
  40. 40.2753² =

Answer key

  1. 556516
  2. 13987600
  3. 88804
  4. 299209
  5. 31684
  6. 8404201
  7. 956484
  8. 641601
  9. 790321
  10. 34199104
  11. 11764900
  12. 763876
  13. 18225
  14. 672400
  15. 45796
  16. 106929
  17. 4372281
  18. 931225
  19. 585225
  20. 25921
  21. 33489
  22. 90601
  23. 680625
  24. 675684
  25. 29149201
  26. 15876
  27. 53173264
  28. 136161
  29. 36650916
  30. 25281
  31. 43797924
  32. 715716
  33. 53260804
  34. 586756
  35. 11641744
  36. 8468100
  37. 448900
  38. 185761
  39. 81342361
  40. 7579009

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