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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 287 · 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. 1.340² =
  2. 2.429² =
  3. 3.141² =
  4. 4.646² =
  5. 5.812² =
  6. 6.5307² =
  7. 7.920² =
  8. 8.917² =
  9. 9.844² =
  10. 10.641² =
  11. 11.298² =
  12. 12.735² =
  13. 13.963² =
  14. 14.170² =
  15. 15.395² =
  16. 16.1190² =
  17. 17.6590² =
  18. 18.955² =
  19. 19.664² =
  20. 20.409² =
  21. 21.4945² =
  22. 22.651² =
  23. 23.943² =
  24. 24.8831² =
  25. 25.187² =
  26. 26.129² =
  27. 27.1860² =
  28. 28.9870² =
  29. 29.5715² =
  30. 30.452² =
  31. 31.165² =
  32. 32.4103² =
  33. 33.354² =
  34. 34.7851² =
  35. 35.6981² =
  36. 36.182² =
  37. 37.7441² =
  38. 38.8909² =
  39. 39.428² =
  40. 40.384² =

Answer key

  1. 115600
  2. 184041
  3. 19881
  4. 417316
  5. 659344
  6. 28164249
  7. 846400
  8. 840889
  9. 712336
  10. 410881
  11. 88804
  12. 540225
  13. 927369
  14. 28900
  15. 156025
  16. 1416100
  17. 43428100
  18. 912025
  19. 440896
  20. 167281
  21. 24453025
  22. 423801
  23. 889249
  24. 77986561
  25. 34969
  26. 16641
  27. 3459600
  28. 97416900
  29. 32661225
  30. 204304
  31. 27225
  32. 16834609
  33. 125316
  34. 61638201
  35. 48734361
  36. 33124
  37. 55368481
  38. 79370281
  39. 183184
  40. 147456

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