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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 738 · 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. 1.461² =
  2. 2.4981² =
  3. 3.586² =
  4. 4.637² =
  5. 5.3667² =
  6. 6.335² =
  7. 7.329² =
  8. 8.4532² =
  9. 9.330² =
  10. 10.217² =
  11. 11.6015² =
  12. 12.176² =
  13. 13.362² =
  14. 14.882² =
  15. 15.498² =
  16. 16.6306² =
  17. 17.183² =
  18. 18.5883² =
  19. 19.339² =
  20. 20.620² =
  21. 21.794² =
  22. 22.621² =
  23. 23.171² =
  24. 24.864² =
  25. 25.140² =
  26. 26.844² =
  27. 27.406² =
  28. 28.388² =
  29. 29.749² =
  30. 30.232² =
  31. 31.331² =
  32. 32.3727² =
  33. 33.1014² =
  34. 34.283² =
  35. 35.3577² =
  36. 36.5046² =
  37. 37.1086² =
  38. 38.448² =
  39. 39.4322² =
  40. 40.205² =

Answer key

  1. 212521
  2. 24810361
  3. 343396
  4. 405769
  5. 13446889
  6. 112225
  7. 108241
  8. 20539024
  9. 108900
  10. 47089
  11. 36180225
  12. 30976
  13. 131044
  14. 777924
  15. 248004
  16. 39765636
  17. 33489
  18. 34609689
  19. 114921
  20. 384400
  21. 630436
  22. 385641
  23. 29241
  24. 746496
  25. 19600
  26. 712336
  27. 164836
  28. 150544
  29. 561001
  30. 53824
  31. 109561
  32. 13890529
  33. 1028196
  34. 80089
  35. 12794929
  36. 25462116
  37. 1179396
  38. 200704
  39. 18679684
  40. 42025

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