← 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 756 · 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. 1.268² =
  2. 2.427² =
  3. 3.908² =
  4. 4.2603² =
  5. 5.185² =
  6. 6.361² =
  7. 7.280² =
  8. 8.648² =
  9. 9.739² =
  10. 10.203² =
  11. 11.4506² =
  12. 12.439² =
  13. 13.589² =
  14. 14.716² =
  15. 15.7715² =
  16. 16.603² =
  17. 17.2065² =
  18. 18.705² =
  19. 19.1253² =
  20. 20.4887² =
  21. 21.714² =
  22. 22.757² =
  23. 23.984² =
  24. 24.604² =
  25. 25.421² =
  26. 26.920² =
  27. 27.9681² =
  28. 28.854² =
  29. 29.391² =
  30. 30.2813² =
  31. 31.334² =
  32. 32.952² =
  33. 33.392² =
  34. 34.511² =
  35. 35.439² =
  36. 36.1504² =
  37. 37.351² =
  38. 38.965² =
  39. 39.9697² =
  40. 40.9547² =

Answer key

  1. 71824
  2. 182329
  3. 824464
  4. 6775609
  5. 34225
  6. 130321
  7. 78400
  8. 419904
  9. 546121
  10. 41209
  11. 20304036
  12. 192721
  13. 346921
  14. 512656
  15. 59521225
  16. 363609
  17. 4264225
  18. 497025
  19. 1570009
  20. 23882769
  21. 509796
  22. 573049
  23. 968256
  24. 364816
  25. 177241
  26. 846400
  27. 93721761
  28. 729316
  29. 152881
  30. 7912969
  31. 111556
  32. 906304
  33. 153664
  34. 261121
  35. 192721
  36. 2262016
  37. 123201
  38. 931225
  39. 94031809
  40. 91145209

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