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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 733 · 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. 1.503² =
  2. 2.652² =
  3. 3.9425² =
  4. 4.7248² =
  5. 5.3104² =
  6. 6.239² =
  7. 7.634² =
  8. 8.914² =
  9. 9.774² =
  10. 10.138² =
  11. 11.792² =
  12. 12.299² =
  13. 13.8967² =
  14. 14.9776² =
  15. 15.2901² =
  16. 16.8291² =
  17. 17.578² =
  18. 18.9829² =
  19. 19.7493² =
  20. 20.781² =
  21. 21.5116² =
  22. 22.388² =
  23. 23.643² =
  24. 24.3683² =
  25. 25.7753² =
  26. 26.1111² =
  27. 27.369² =
  28. 28.7119² =
  29. 29.390² =
  30. 30.123² =
  31. 31.154² =
  32. 32.164² =
  33. 33.159² =
  34. 34.9315² =
  35. 35.1935² =
  36. 36.623² =
  37. 37.969² =
  38. 38.286² =
  39. 39.588² =
  40. 40.560² =

Answer key

  1. 253009
  2. 425104
  3. 88830625
  4. 52533504
  5. 9634816
  6. 57121
  7. 401956
  8. 835396
  9. 599076
  10. 19044
  11. 627264
  12. 89401
  13. 80407089
  14. 95570176
  15. 8415801
  16. 68740681
  17. 334084
  18. 96609241
  19. 56145049
  20. 609961
  21. 26173456
  22. 150544
  23. 413449
  24. 13564489
  25. 60109009
  26. 1234321
  27. 136161
  28. 50680161
  29. 152100
  30. 15129
  31. 23716
  32. 26896
  33. 25281
  34. 86769225
  35. 3744225
  36. 388129
  37. 938961
  38. 81796
  39. 345744
  40. 313600

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