← 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 378 · 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. 1.7577² =
  2. 2.2083² =
  3. 3.423² =
  4. 4.6199² =
  5. 5.173² =
  6. 6.399² =
  7. 7.186² =
  8. 8.237² =
  9. 9.203² =
  10. 10.261² =
  11. 11.600² =
  12. 12.134² =
  13. 13.9745² =
  14. 14.218² =
  15. 15.963² =
  16. 16.909² =
  17. 17.586² =
  18. 18.700² =
  19. 19.293² =
  20. 20.298² =
  21. 21.720² =
  22. 22.5636² =
  23. 23.995² =
  24. 24.3112² =
  25. 25.145² =
  26. 26.339² =
  27. 27.419² =
  28. 28.131² =
  29. 29.932² =
  30. 30.398² =
  31. 31.3663² =
  32. 32.548² =
  33. 33.449² =
  34. 34.251² =
  35. 35.707² =
  36. 36.602² =
  37. 37.3146² =
  38. 38.766² =
  39. 39.883² =
  40. 40.270² =

Answer key

  1. 57410929
  2. 4338889
  3. 178929
  4. 38427601
  5. 29929
  6. 159201
  7. 34596
  8. 56169
  9. 41209
  10. 68121
  11. 360000
  12. 17956
  13. 94965025
  14. 47524
  15. 927369
  16. 826281
  17. 343396
  18. 490000
  19. 85849
  20. 88804
  21. 518400
  22. 31764496
  23. 990025
  24. 9684544
  25. 21025
  26. 114921
  27. 175561
  28. 17161
  29. 868624
  30. 158404
  31. 13417569
  32. 300304
  33. 201601
  34. 63001
  35. 499849
  36. 362404
  37. 9897316
  38. 586756
  39. 779689
  40. 72900

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