← 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 120 · 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. 1.433² =
  2. 2.7585² =
  3. 3.4655² =
  4. 4.165² =
  5. 5.284² =
  6. 6.9748² =
  7. 7.533² =
  8. 8.198² =
  9. 9.658² =
  10. 10.558² =
  11. 11.542² =
  12. 12.455² =
  13. 13.7603² =
  14. 14.839² =
  15. 15.911² =
  16. 16.1131² =
  17. 17.943² =
  18. 18.156² =
  19. 19.5738² =
  20. 20.776² =
  21. 21.461² =
  22. 22.5644² =
  23. 23.545² =
  24. 24.8507² =
  25. 25.8217² =
  26. 26.336² =
  27. 27.424² =
  28. 28.740² =
  29. 29.841² =
  30. 30.863² =
  31. 31.279² =
  32. 32.209² =
  33. 33.428² =
  34. 34.335² =
  35. 35.185² =
  36. 36.376² =
  37. 37.3988² =
  38. 38.933² =
  39. 39.306² =
  40. 40.302² =

Answer key

  1. 187489
  2. 57532225
  3. 21669025
  4. 27225
  5. 80656
  6. 95023504
  7. 284089
  8. 39204
  9. 432964
  10. 311364
  11. 293764
  12. 207025
  13. 57805609
  14. 703921
  15. 829921
  16. 1279161
  17. 889249
  18. 24336
  19. 32924644
  20. 602176
  21. 212521
  22. 31854736
  23. 297025
  24. 72369049
  25. 67519089
  26. 112896
  27. 179776
  28. 547600
  29. 707281
  30. 744769
  31. 77841
  32. 43681
  33. 183184
  34. 112225
  35. 34225
  36. 141376
  37. 15904144
  38. 870489
  39. 93636
  40. 91204

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