← 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 81 · 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. 1.964² =
  2. 2.706² =
  3. 3.1958² =
  4. 4.284² =
  5. 5.144² =
  6. 6.856² =
  7. 7.6026² =
  8. 8.539² =
  9. 9.905² =
  10. 10.5703² =
  11. 11.116² =
  12. 12.344² =
  13. 13.232² =
  14. 14.941² =
  15. 15.6661² =
  16. 16.381² =
  17. 17.606² =
  18. 18.475² =
  19. 19.703² =
  20. 20.5608² =
  21. 21.8799² =
  22. 22.942² =
  23. 23.5494² =
  24. 24.119² =
  25. 25.176² =
  26. 26.948² =
  27. 27.643² =
  28. 28.231² =
  29. 29.367² =
  30. 30.884² =
  31. 31.294² =
  32. 32.662² =
  33. 33.253² =
  34. 34.511² =
  35. 35.457² =
  36. 36.136² =
  37. 37.628² =
  38. 38.454² =
  39. 39.1330² =
  40. 40.524² =

Answer key

  1. 929296
  2. 498436
  3. 3833764
  4. 80656
  5. 20736
  6. 732736
  7. 36312676
  8. 290521
  9. 819025
  10. 32524209
  11. 13456
  12. 118336
  13. 53824
  14. 885481
  15. 44368921
  16. 145161
  17. 367236
  18. 225625
  19. 494209
  20. 31449664
  21. 77422401
  22. 887364
  23. 30184036
  24. 14161
  25. 30976
  26. 898704
  27. 413449
  28. 53361
  29. 134689
  30. 781456
  31. 86436
  32. 438244
  33. 64009
  34. 261121
  35. 208849
  36. 18496
  37. 394384
  38. 206116
  39. 1768900
  40. 274576

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