← 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 215 · 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. 1.616² =
  2. 2.2528² =
  3. 3.4831² =
  4. 4.859² =
  5. 5.7790² =
  6. 6.880² =
  7. 7.159² =
  8. 8.782² =
  9. 9.3105² =
  10. 10.6683² =
  11. 11.8223² =
  12. 12.758² =
  13. 13.180² =
  14. 14.615² =
  15. 15.3700² =
  16. 16.853² =
  17. 17.600² =
  18. 18.608² =
  19. 19.622² =
  20. 20.365² =
  21. 21.790² =
  22. 22.987² =
  23. 23.3723² =
  24. 24.7268² =
  25. 25.224² =
  26. 26.575² =
  27. 27.965² =
  28. 28.2609² =
  29. 29.243² =
  30. 30.7281² =
  31. 31.585² =
  32. 32.110² =
  33. 33.6804² =
  34. 34.5179² =
  35. 35.246² =
  36. 36.2797² =
  37. 37.259² =
  38. 38.108² =
  39. 39.889² =
  40. 40.896² =

Answer key

  1. 379456
  2. 6390784
  3. 23338561
  4. 737881
  5. 60684100
  6. 774400
  7. 25281
  8. 611524
  9. 9641025
  10. 44662489
  11. 67617729
  12. 574564
  13. 32400
  14. 378225
  15. 13690000
  16. 727609
  17. 360000
  18. 369664
  19. 386884
  20. 133225
  21. 624100
  22. 974169
  23. 13860729
  24. 52823824
  25. 50176
  26. 330625
  27. 931225
  28. 6806881
  29. 59049
  30. 53012961
  31. 342225
  32. 12100
  33. 46294416
  34. 26822041
  35. 60516
  36. 7823209
  37. 67081
  38. 11664
  39. 790321
  40. 802816

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