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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 933 · 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. 1.887² =
  2. 2.185² =
  3. 3.355² =
  4. 4.973² =
  5. 5.891² =
  6. 6.291² =
  7. 7.9744² =
  8. 8.129² =
  9. 9.340² =
  10. 10.351² =
  11. 11.167² =
  12. 12.763² =
  13. 13.131² =
  14. 14.331² =
  15. 15.187² =
  16. 16.7801² =
  17. 17.8234² =
  18. 18.6810² =
  19. 19.9141² =
  20. 20.826² =
  21. 21.186² =
  22. 22.4539² =
  23. 23.188² =
  24. 24.1966² =
  25. 25.833² =
  26. 26.5919² =
  27. 27.271² =
  28. 28.651² =
  29. 29.431² =
  30. 30.746² =
  31. 31.2145² =
  32. 32.3187² =
  33. 33.111² =
  34. 34.960² =
  35. 35.2024² =
  36. 36.668² =
  37. 37.273² =
  38. 38.2378² =
  39. 39.990² =
  40. 40.319² =

Answer key

  1. 786769
  2. 34225
  3. 126025
  4. 946729
  5. 793881
  6. 84681
  7. 94945536
  8. 16641
  9. 115600
  10. 123201
  11. 27889
  12. 582169
  13. 17161
  14. 109561
  15. 34969
  16. 60855601
  17. 67798756
  18. 46376100
  19. 83557881
  20. 682276
  21. 34596
  22. 20602521
  23. 35344
  24. 3865156
  25. 693889
  26. 35034561
  27. 73441
  28. 423801
  29. 185761
  30. 556516
  31. 4601025
  32. 10156969
  33. 12321
  34. 921600
  35. 4096576
  36. 446224
  37. 74529
  38. 5654884
  39. 980100
  40. 101761

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