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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 623 · 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. 1.181² =
  2. 2.999² =
  3. 3.962² =
  4. 4.6550² =
  5. 5.340² =
  6. 6.979² =
  7. 7.412² =
  8. 8.824² =
  9. 9.160² =
  10. 10.394² =
  11. 11.632² =
  12. 12.123² =
  13. 13.875² =
  14. 14.4487² =
  15. 15.805² =
  16. 16.928² =
  17. 17.823² =
  18. 18.144² =
  19. 19.121² =
  20. 20.928² =
  21. 21.516² =
  22. 22.714² =
  23. 23.185² =
  24. 24.3924² =
  25. 25.242² =
  26. 26.721² =
  27. 27.415² =
  28. 28.245² =
  29. 29.1940² =
  30. 30.9615² =
  31. 31.951² =
  32. 32.378² =
  33. 33.510² =
  34. 34.885² =
  35. 35.693² =
  36. 36.8490² =
  37. 37.449² =
  38. 38.865² =
  39. 39.603² =
  40. 40.904² =

Answer key

  1. 32761
  2. 998001
  3. 925444
  4. 42902500
  5. 115600
  6. 958441
  7. 169744
  8. 678976
  9. 25600
  10. 155236
  11. 399424
  12. 15129
  13. 765625
  14. 20133169
  15. 648025
  16. 861184
  17. 677329
  18. 20736
  19. 14641
  20. 861184
  21. 266256
  22. 509796
  23. 34225
  24. 15397776
  25. 58564
  26. 519841
  27. 172225
  28. 60025
  29. 3763600
  30. 92448225
  31. 904401
  32. 142884
  33. 260100
  34. 783225
  35. 480249
  36. 72080100
  37. 201601
  38. 748225
  39. 363609
  40. 817216

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