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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 597 · 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. 1.9513² =
  2. 2.3240² =
  3. 3.336² =
  4. 4.348² =
  5. 5.661² =
  6. 6.7951² =
  7. 7.474² =
  8. 8.272² =
  9. 9.3467² =
  10. 10.897² =
  11. 11.969² =
  12. 12.2726² =
  13. 13.452² =
  14. 14.468² =
  15. 15.926² =
  16. 16.357² =
  17. 17.2980² =
  18. 18.947² =
  19. 19.387² =
  20. 20.922² =
  21. 21.780² =
  22. 22.2353² =
  23. 23.288² =
  24. 24.483² =
  25. 25.510² =
  26. 26.8342² =
  27. 27.307² =
  28. 28.206² =
  29. 29.2151² =
  30. 30.595² =
  31. 31.164² =
  32. 32.8876² =
  33. 33.929² =
  34. 34.8209² =
  35. 35.579² =
  36. 36.767² =
  37. 37.915² =
  38. 38.441² =
  39. 39.200² =
  40. 40.887² =

Answer key

  1. 90497169
  2. 10497600
  3. 112896
  4. 121104
  5. 436921
  6. 63218401
  7. 224676
  8. 73984
  9. 12020089
  10. 804609
  11. 938961
  12. 7431076
  13. 204304
  14. 219024
  15. 857476
  16. 127449
  17. 8880400
  18. 896809
  19. 149769
  20. 850084
  21. 608400
  22. 5536609
  23. 82944
  24. 233289
  25. 260100
  26. 69588964
  27. 94249
  28. 42436
  29. 4626801
  30. 354025
  31. 26896
  32. 78783376
  33. 863041
  34. 67387681
  35. 335241
  36. 588289
  37. 837225
  38. 194481
  39. 40000
  40. 786769

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