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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 360 · 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. 1.252² =
  2. 2.999² =
  3. 3.791² =
  4. 4.111² =
  5. 5.197² =
  6. 6.333² =
  7. 7.4688² =
  8. 8.871² =
  9. 9.9520² =
  10. 10.147² =
  11. 11.9096² =
  12. 12.4403² =
  13. 13.883² =
  14. 14.335² =
  15. 15.5837² =
  16. 16.660² =
  17. 17.227² =
  18. 18.366² =
  19. 19.869² =
  20. 20.9127² =
  21. 21.301² =
  22. 22.535² =
  23. 23.478² =
  24. 24.799² =
  25. 25.262² =
  26. 26.8537² =
  27. 27.945² =
  28. 28.998² =
  29. 29.530² =
  30. 30.2390² =
  31. 31.191² =
  32. 32.7119² =
  33. 33.3108² =
  34. 34.2056² =
  35. 35.934² =
  36. 36.912² =
  37. 37.830² =
  38. 38.767² =
  39. 39.166² =
  40. 40.1245² =

Answer key

  1. 63504
  2. 998001
  3. 625681
  4. 12321
  5. 38809
  6. 110889
  7. 21977344
  8. 758641
  9. 90630400
  10. 21609
  11. 82737216
  12. 19386409
  13. 779689
  14. 112225
  15. 34070569
  16. 435600
  17. 51529
  18. 133956
  19. 755161
  20. 83302129
  21. 90601
  22. 286225
  23. 228484
  24. 638401
  25. 68644
  26. 72880369
  27. 893025
  28. 996004
  29. 280900
  30. 5712100
  31. 36481
  32. 50680161
  33. 9659664
  34. 4227136
  35. 872356
  36. 831744
  37. 688900
  38. 588289
  39. 27556
  40. 1550025

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