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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 6 · 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. 1.434² =
  2. 2.2668² =
  3. 3.752² =
  4. 4.2528² =
  5. 5.1537² =
  6. 6.2100² =
  7. 7.141² =
  8. 8.4567² =
  9. 9.668² =
  10. 10.871² =
  11. 11.1826² =
  12. 12.675² =
  13. 13.636² =
  14. 14.149² =
  15. 15.8347² =
  16. 16.2930² =
  17. 17.2704² =
  18. 18.731² =
  19. 19.366² =
  20. 20.515² =
  21. 21.5751² =
  22. 22.408² =
  23. 23.274² =
  24. 24.9708² =
  25. 25.4993² =
  26. 26.564² =
  27. 27.1076² =
  28. 28.951² =
  29. 29.532² =
  30. 30.1865² =
  31. 31.825² =
  32. 32.709² =
  33. 33.427² =
  34. 34.9296² =
  35. 35.9360² =
  36. 36.122² =
  37. 37.983² =
  38. 38.681² =
  39. 39.1183² =
  40. 40.971² =

Answer key

  1. 188356
  2. 7118224
  3. 565504
  4. 6390784
  5. 2362369
  6. 4410000
  7. 19881
  8. 20857489
  9. 446224
  10. 758641
  11. 3334276
  12. 455625
  13. 404496
  14. 22201
  15. 69672409
  16. 8584900
  17. 7311616
  18. 534361
  19. 133956
  20. 265225
  21. 33074001
  22. 166464
  23. 75076
  24. 94245264
  25. 24930049
  26. 318096
  27. 1157776
  28. 904401
  29. 283024
  30. 3478225
  31. 680625
  32. 502681
  33. 182329
  34. 86415616
  35. 87609600
  36. 14884
  37. 966289
  38. 463761
  39. 1399489
  40. 942841

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