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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 314 · 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. 1.733² =
  2. 2.6408² =
  3. 3.1162² =
  4. 4.105² =
  5. 5.3436² =
  6. 6.4848² =
  7. 7.189² =
  8. 8.256² =
  9. 9.651² =
  10. 10.722² =
  11. 11.894² =
  12. 12.196² =
  13. 13.4609² =
  14. 14.6286² =
  15. 15.357² =
  16. 16.320² =
  17. 17.773² =
  18. 18.273² =
  19. 19.610² =
  20. 20.319² =
  21. 21.454² =
  22. 22.3597² =
  23. 23.903² =
  24. 24.639² =
  25. 25.437² =
  26. 26.334² =
  27. 27.477² =
  28. 28.683² =
  29. 29.2101² =
  30. 30.398² =
  31. 31.3193² =
  32. 32.313² =
  33. 33.473² =
  34. 34.8204² =
  35. 35.377² =
  36. 36.883² =
  37. 37.926² =
  38. 38.214² =
  39. 39.967² =
  40. 40.961² =

Answer key

  1. 537289
  2. 41062464
  3. 1350244
  4. 11025
  5. 11806096
  6. 23503104
  7. 35721
  8. 65536
  9. 423801
  10. 521284
  11. 799236
  12. 38416
  13. 21242881
  14. 39513796
  15. 127449
  16. 102400
  17. 597529
  18. 74529
  19. 372100
  20. 101761
  21. 206116
  22. 12938409
  23. 815409
  24. 408321
  25. 190969
  26. 111556
  27. 227529
  28. 466489
  29. 4414201
  30. 158404
  31. 10195249
  32. 97969
  33. 223729
  34. 67305616
  35. 142129
  36. 779689
  37. 857476
  38. 45796
  39. 935089
  40. 923521

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