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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 951 · 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. 1.5675² =
  2. 2.798² =
  3. 3.8855² =
  4. 4.232² =
  5. 5.2121² =
  6. 6.791² =
  7. 7.155² =
  8. 8.143² =
  9. 9.206² =
  10. 10.400² =
  11. 11.275² =
  12. 12.5238² =
  13. 13.296² =
  14. 14.384² =
  15. 15.122² =
  16. 16.1023² =
  17. 17.972² =
  18. 18.272² =
  19. 19.5744² =
  20. 20.1646² =
  21. 21.2674² =
  22. 22.708² =
  23. 23.916² =
  24. 24.3399² =
  25. 25.2330² =
  26. 26.669² =
  27. 27.311² =
  28. 28.5217² =
  29. 29.830² =
  30. 30.988² =
  31. 31.834² =
  32. 32.114² =
  33. 33.517² =
  34. 34.598² =
  35. 35.651² =
  36. 36.180² =
  37. 37.684² =
  38. 38.755² =
  39. 39.895² =
  40. 40.141² =

Answer key

  1. 32205625
  2. 636804
  3. 78411025
  4. 53824
  5. 4498641
  6. 625681
  7. 24025
  8. 20449
  9. 42436
  10. 160000
  11. 75625
  12. 27436644
  13. 87616
  14. 147456
  15. 14884
  16. 1046529
  17. 944784
  18. 73984
  19. 32993536
  20. 2709316
  21. 7150276
  22. 501264
  23. 839056
  24. 11553201
  25. 5428900
  26. 447561
  27. 96721
  28. 27217089
  29. 688900
  30. 976144
  31. 695556
  32. 12996
  33. 267289
  34. 357604
  35. 423801
  36. 32400
  37. 467856
  38. 570025
  39. 801025
  40. 19881

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