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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 79 · 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. 1.536² =
  2. 2.876² =
  3. 3.5289² =
  4. 4.149² =
  5. 5.3356² =
  6. 6.691² =
  7. 7.289² =
  8. 8.983² =
  9. 9.4686² =
  10. 10.571² =
  11. 11.953² =
  12. 12.902² =
  13. 13.574² =
  14. 14.425² =
  15. 15.736² =
  16. 16.1368² =
  17. 17.360² =
  18. 18.239² =
  19. 19.302² =
  20. 20.174² =
  21. 21.495² =
  22. 22.1270² =
  23. 23.466² =
  24. 24.8025² =
  25. 25.188² =
  26. 26.926² =
  27. 27.948² =
  28. 28.681² =
  29. 29.712² =
  30. 30.737² =
  31. 31.627² =
  32. 32.929² =
  33. 33.9945² =
  34. 34.8691² =
  35. 35.2061² =
  36. 36.983² =
  37. 37.1279² =
  38. 38.223² =
  39. 39.2433² =
  40. 40.145² =

Answer key

  1. 287296
  2. 767376
  3. 27973521
  4. 22201
  5. 11262736
  6. 477481
  7. 83521
  8. 966289
  9. 21958596
  10. 326041
  11. 908209
  12. 813604
  13. 329476
  14. 180625
  15. 541696
  16. 1871424
  17. 129600
  18. 57121
  19. 91204
  20. 30276
  21. 245025
  22. 1612900
  23. 217156
  24. 64400625
  25. 35344
  26. 857476
  27. 898704
  28. 463761
  29. 506944
  30. 543169
  31. 393129
  32. 863041
  33. 98903025
  34. 75533481
  35. 4247721
  36. 966289
  37. 1635841
  38. 49729
  39. 5919489
  40. 21025

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