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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 530 · 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. 1.184² =
  2. 2.137² =
  3. 3.1486² =
  4. 4.357² =
  5. 5.992² =
  6. 6.139² =
  7. 7.126² =
  8. 8.911² =
  9. 9.189² =
  10. 10.801² =
  11. 11.9334² =
  12. 12.386² =
  13. 13.2831² =
  14. 14.275² =
  15. 15.6340² =
  16. 16.966² =
  17. 17.249² =
  18. 18.770² =
  19. 19.572² =
  20. 20.9261² =
  21. 21.6886² =
  22. 22.789² =
  23. 23.217² =
  24. 24.207² =
  25. 25.586² =
  26. 26.158² =
  27. 27.919² =
  28. 28.8639² =
  29. 29.703² =
  30. 30.181² =
  31. 31.434² =
  32. 32.123² =
  33. 33.307² =
  34. 34.760² =
  35. 35.627² =
  36. 36.715² =
  37. 37.3100² =
  38. 38.5035² =
  39. 39.2759² =
  40. 40.1135² =

Answer key

  1. 33856
  2. 18769
  3. 2208196
  4. 127449
  5. 984064
  6. 19321
  7. 15876
  8. 829921
  9. 35721
  10. 641601
  11. 87123556
  12. 148996
  13. 8014561
  14. 75625
  15. 40195600
  16. 933156
  17. 62001
  18. 592900
  19. 327184
  20. 85766121
  21. 47416996
  22. 622521
  23. 47089
  24. 42849
  25. 343396
  26. 24964
  27. 844561
  28. 74632321
  29. 494209
  30. 32761
  31. 188356
  32. 15129
  33. 94249
  34. 577600
  35. 393129
  36. 511225
  37. 9610000
  38. 25351225
  39. 7612081
  40. 1288225

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