← 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 984 · 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. 1.705² =
  2. 2.180² =
  3. 3.8473² =
  4. 4.6232² =
  5. 5.148² =
  6. 6.685² =
  7. 7.346² =
  8. 8.8415² =
  9. 9.555² =
  10. 10.1115² =
  11. 11.139² =
  12. 12.293² =
  13. 13.326² =
  14. 14.830² =
  15. 15.166² =
  16. 16.326² =
  17. 17.445² =
  18. 18.254² =
  19. 19.324² =
  20. 20.244² =
  21. 21.578² =
  22. 22.952² =
  23. 23.225² =
  24. 24.6360² =
  25. 25.232² =
  26. 26.433² =
  27. 27.280² =
  28. 28.594² =
  29. 29.4606² =
  30. 30.334² =
  31. 31.116² =
  32. 32.997² =
  33. 33.8498² =
  34. 34.503² =
  35. 35.178² =
  36. 36.647² =
  37. 37.165² =
  38. 38.8728² =
  39. 39.312² =
  40. 40.363² =

Answer key

  1. 497025
  2. 32400
  3. 71791729
  4. 38837824
  5. 21904
  6. 469225
  7. 119716
  8. 70812225
  9. 308025
  10. 1243225
  11. 19321
  12. 85849
  13. 106276
  14. 688900
  15. 27556
  16. 106276
  17. 198025
  18. 64516
  19. 104976
  20. 59536
  21. 334084
  22. 906304
  23. 50625
  24. 40449600
  25. 53824
  26. 187489
  27. 78400
  28. 352836
  29. 21215236
  30. 111556
  31. 13456
  32. 994009
  33. 72216004
  34. 253009
  35. 31684
  36. 418609
  37. 27225
  38. 76177984
  39. 97344
  40. 131769

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