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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 196 · 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. 1.4141² =
  2. 2.823² =
  3. 3.239² =
  4. 4.7667² =
  5. 5.8139² =
  6. 6.2780² =
  7. 7.3699² =
  8. 8.200² =
  9. 9.394² =
  10. 10.3880² =
  11. 11.144² =
  12. 12.461² =
  13. 13.177² =
  14. 14.753² =
  15. 15.308² =
  16. 16.851² =
  17. 17.5159² =
  18. 18.3205² =
  19. 19.578² =
  20. 20.617² =
  21. 21.881² =
  22. 22.196² =
  23. 23.1281² =
  24. 24.3775² =
  25. 25.794² =
  26. 26.388² =
  27. 27.302² =
  28. 28.279² =
  29. 29.504² =
  30. 30.2753² =
  31. 31.502² =
  32. 32.8372² =
  33. 33.724² =
  34. 34.673² =
  35. 35.6236² =
  36. 36.523² =
  37. 37.601² =
  38. 38.105² =
  39. 39.376² =
  40. 40.154² =

Answer key

  1. 17147881
  2. 677329
  3. 57121
  4. 58782889
  5. 66243321
  6. 7728400
  7. 13682601
  8. 40000
  9. 155236
  10. 15054400
  11. 20736
  12. 212521
  13. 31329
  14. 567009
  15. 94864
  16. 724201
  17. 26615281
  18. 10272025
  19. 334084
  20. 380689
  21. 776161
  22. 38416
  23. 1640961
  24. 14250625
  25. 630436
  26. 150544
  27. 91204
  28. 77841
  29. 254016
  30. 7579009
  31. 252004
  32. 70090384
  33. 524176
  34. 452929
  35. 38887696
  36. 273529
  37. 361201
  38. 11025
  39. 141376
  40. 23716

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