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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 833 · 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. 1.7813² =
  2. 2.5831² =
  3. 3.1668² =
  4. 4.342² =
  5. 5.7531² =
  6. 6.175² =
  7. 7.632² =
  8. 8.948² =
  9. 9.314² =
  10. 10.794² =
  11. 11.271² =
  12. 12.493² =
  13. 13.7297² =
  14. 14.585² =
  15. 15.6991² =
  16. 16.217² =
  17. 17.515² =
  18. 18.765² =
  19. 19.168² =
  20. 20.940² =
  21. 21.511² =
  22. 22.9644² =
  23. 23.122² =
  24. 24.7472² =
  25. 25.3927² =
  26. 26.315² =
  27. 27.233² =
  28. 28.330² =
  29. 29.997² =
  30. 30.438² =
  31. 31.104² =
  32. 32.6004² =
  33. 33.336² =
  34. 34.593² =
  35. 35.806² =
  36. 36.413² =
  37. 37.748² =
  38. 38.207² =
  39. 39.4011² =
  40. 40.391² =

Answer key

  1. 61042969
  2. 34000561
  3. 2782224
  4. 116964
  5. 56715961
  6. 30625
  7. 399424
  8. 898704
  9. 98596
  10. 630436
  11. 73441
  12. 243049
  13. 53246209
  14. 342225
  15. 48874081
  16. 47089
  17. 265225
  18. 585225
  19. 28224
  20. 883600
  21. 261121
  22. 93006736
  23. 14884
  24. 55830784
  25. 15421329
  26. 99225
  27. 54289
  28. 108900
  29. 994009
  30. 191844
  31. 10816
  32. 36048016
  33. 112896
  34. 351649
  35. 649636
  36. 170569
  37. 559504
  38. 42849
  39. 16088121
  40. 152881

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