← Squares of 3- and 4-digit numbers lesson New set →

Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 668 · 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. 1.5173² =
  2. 2.469² =
  3. 3.876² =
  4. 4.786² =
  5. 5.8791² =
  6. 6.1758² =
  7. 7.190² =
  8. 8.132² =
  9. 9.193² =
  10. 10.742² =
  11. 11.3133² =
  12. 12.1955² =
  13. 13.265² =
  14. 14.781² =
  15. 15.3696² =
  16. 16.859² =
  17. 17.2301² =
  18. 18.8437² =
  19. 19.7011² =
  20. 20.501² =
  21. 21.586² =
  22. 22.197² =
  23. 23.3983² =
  24. 24.901² =
  25. 25.3493² =
  26. 26.854² =
  27. 27.323² =
  28. 28.2489² =
  29. 29.9921² =
  30. 30.8637² =
  31. 31.3573² =
  32. 32.980² =
  33. 33.723² =
  34. 34.1336² =
  35. 35.227² =
  36. 36.182² =
  37. 37.235² =
  38. 38.889² =
  39. 39.664² =
  40. 40.445² =

Answer key

  1. 26759929
  2. 219961
  3. 767376
  4. 617796
  5. 77281681
  6. 3090564
  7. 36100
  8. 17424
  9. 37249
  10. 550564
  11. 9815689
  12. 3822025
  13. 70225
  14. 609961
  15. 13660416
  16. 737881
  17. 5294601
  18. 71182969
  19. 49154121
  20. 251001
  21. 343396
  22. 38809
  23. 15864289
  24. 811801
  25. 12201049
  26. 729316
  27. 104329
  28. 6195121
  29. 98426241
  30. 74597769
  31. 12766329
  32. 960400
  33. 522729
  34. 1784896
  35. 51529
  36. 33124
  37. 55225
  38. 790321
  39. 440896
  40. 198025

Free vedic maths lessons, practice and worksheets at talentjr.in/vedic-maths