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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 463 · 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. 1.2720² =
  2. 2.273² =
  3. 3.636² =
  4. 4.1257² =
  5. 5.378² =
  6. 6.844² =
  7. 7.3148² =
  8. 8.441² =
  9. 9.242² =
  10. 10.737² =
  11. 11.911² =
  12. 12.194² =
  13. 13.622² =
  14. 14.4580² =
  15. 15.4860² =
  16. 16.9120² =
  17. 17.434² =
  18. 18.240² =
  19. 19.352² =
  20. 20.136² =
  21. 21.1796² =
  22. 22.191² =
  23. 23.8675² =
  24. 24.734² =
  25. 25.660² =
  26. 26.668² =
  27. 27.152² =
  28. 28.8865² =
  29. 29.7796² =
  30. 30.174² =
  31. 31.750² =
  32. 32.6419² =
  33. 33.818² =
  34. 34.234² =
  35. 35.1558² =
  36. 36.809² =
  37. 37.342² =
  38. 38.5484² =
  39. 39.540² =
  40. 40.1601² =

Answer key

  1. 7398400
  2. 74529
  3. 404496
  4. 1580049
  5. 142884
  6. 712336
  7. 9909904
  8. 194481
  9. 58564
  10. 543169
  11. 829921
  12. 37636
  13. 386884
  14. 20976400
  15. 23619600
  16. 83174400
  17. 188356
  18. 57600
  19. 123904
  20. 18496
  21. 3225616
  22. 36481
  23. 75255625
  24. 538756
  25. 435600
  26. 446224
  27. 23104
  28. 78588225
  29. 60777616
  30. 30276
  31. 562500
  32. 41203561
  33. 669124
  34. 54756
  35. 2427364
  36. 654481
  37. 116964
  38. 30074256
  39. 291600
  40. 2563201

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