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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 155 · 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. 1.9444² =
  2. 2.682² =
  3. 3.4636² =
  4. 4.1338² =
  5. 5.3251² =
  6. 6.9545² =
  7. 7.9528² =
  8. 8.591² =
  9. 9.2195² =
  10. 10.661² =
  11. 11.808² =
  12. 12.917² =
  13. 13.131² =
  14. 14.220² =
  15. 15.685² =
  16. 16.956² =
  17. 17.499² =
  18. 18.5591² =
  19. 19.496² =
  20. 20.5422² =
  21. 21.893² =
  22. 22.828² =
  23. 23.9694² =
  24. 24.763² =
  25. 25.567² =
  26. 26.596² =
  27. 27.6102² =
  28. 28.755² =
  29. 29.346² =
  30. 30.8889² =
  31. 31.169² =
  32. 32.842² =
  33. 33.490² =
  34. 34.536² =
  35. 35.627² =
  36. 36.7479² =
  37. 37.940² =
  38. 38.515² =
  39. 39.584² =
  40. 40.7251² =

Answer key

  1. 89189136
  2. 465124
  3. 21492496
  4. 1790244
  5. 10569001
  6. 91107025
  7. 90782784
  8. 349281
  9. 4818025
  10. 436921
  11. 652864
  12. 840889
  13. 17161
  14. 48400
  15. 469225
  16. 913936
  17. 249001
  18. 31259281
  19. 246016
  20. 29398084
  21. 797449
  22. 685584
  23. 93973636
  24. 582169
  25. 321489
  26. 355216
  27. 37234404
  28. 570025
  29. 119716
  30. 79014321
  31. 28561
  32. 708964
  33. 240100
  34. 287296
  35. 393129
  36. 55935441
  37. 883600
  38. 265225
  39. 341056
  40. 52577001

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