← 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 290 · 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. 1.501² =
  2. 2.1735² =
  3. 3.5474² =
  4. 4.284² =
  5. 5.942² =
  6. 6.832² =
  7. 7.776² =
  8. 8.8325² =
  9. 9.984² =
  10. 10.7291² =
  11. 11.8849² =
  12. 12.367² =
  13. 13.708² =
  14. 14.369² =
  15. 15.479² =
  16. 16.655² =
  17. 17.6794² =
  18. 18.3630² =
  19. 19.570² =
  20. 20.7644² =
  21. 21.598² =
  22. 22.650² =
  23. 23.236² =
  24. 24.3301² =
  25. 25.4359² =
  26. 26.2987² =
  27. 27.342² =
  28. 28.8064² =
  29. 29.121² =
  30. 30.413² =
  31. 31.935² =
  32. 32.347² =
  33. 33.846² =
  34. 34.9009² =
  35. 35.8608² =
  36. 36.8732² =
  37. 37.2458² =
  38. 38.5513² =
  39. 39.476² =
  40. 40.482² =

Answer key

  1. 251001
  2. 3010225
  3. 29964676
  4. 80656
  5. 887364
  6. 692224
  7. 602176
  8. 69305625
  9. 968256
  10. 53158681
  11. 78304801
  12. 134689
  13. 501264
  14. 136161
  15. 229441
  16. 429025
  17. 46158436
  18. 13176900
  19. 324900
  20. 58430736
  21. 357604
  22. 422500
  23. 55696
  24. 10896601
  25. 19000881
  26. 8922169
  27. 116964
  28. 65028096
  29. 14641
  30. 170569
  31. 874225
  32. 120409
  33. 715716
  34. 81162081
  35. 74097664
  36. 76247824
  37. 6041764
  38. 30393169
  39. 226576
  40. 232324

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