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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 522 · 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. 1.617² =
  2. 2.9740² =
  3. 3.1553² =
  4. 4.337² =
  5. 5.539² =
  6. 6.4223² =
  7. 7.6478² =
  8. 8.383² =
  9. 9.704² =
  10. 10.171² =
  11. 11.488² =
  12. 12.997² =
  13. 13.212² =
  14. 14.631² =
  15. 15.7733² =
  16. 16.853² =
  17. 17.622² =
  18. 18.429² =
  19. 19.426² =
  20. 20.2571² =
  21. 21.8163² =
  22. 22.131² =
  23. 23.8468² =
  24. 24.629² =
  25. 25.185² =
  26. 26.326² =
  27. 27.266² =
  28. 28.907² =
  29. 29.457² =
  30. 30.2736² =
  31. 31.497² =
  32. 32.1215² =
  33. 33.6238² =
  34. 34.9373² =
  35. 35.399² =
  36. 36.466² =
  37. 37.941² =
  38. 38.982² =
  39. 39.1510² =
  40. 40.6063² =

Answer key

  1. 380689
  2. 94867600
  3. 2411809
  4. 113569
  5. 290521
  6. 17833729
  7. 41964484
  8. 146689
  9. 495616
  10. 29241
  11. 238144
  12. 994009
  13. 44944
  14. 398161
  15. 59799289
  16. 727609
  17. 386884
  18. 184041
  19. 181476
  20. 6610041
  21. 66634569
  22. 17161
  23. 71707024
  24. 395641
  25. 34225
  26. 106276
  27. 70756
  28. 822649
  29. 208849
  30. 7485696
  31. 247009
  32. 1476225
  33. 38912644
  34. 87853129
  35. 159201
  36. 217156
  37. 885481
  38. 964324
  39. 2280100
  40. 36759969

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