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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 634 · 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. 1.3005² =
  2. 2.2437² =
  3. 3.895² =
  4. 4.3302² =
  5. 5.271² =
  6. 6.792² =
  7. 7.365² =
  8. 8.9963² =
  9. 9.3825² =
  10. 10.282² =
  11. 11.299² =
  12. 12.201² =
  13. 13.497² =
  14. 14.337² =
  15. 15.608² =
  16. 16.431² =
  17. 17.129² =
  18. 18.6600² =
  19. 19.726² =
  20. 20.527² =
  21. 21.805² =
  22. 22.782² =
  23. 23.149² =
  24. 24.149² =
  25. 25.408² =
  26. 26.911² =
  27. 27.521² =
  28. 28.669² =
  29. 29.1171² =
  30. 30.177² =
  31. 31.553² =
  32. 32.152² =
  33. 33.5325² =
  34. 34.866² =
  35. 35.341² =
  36. 36.443² =
  37. 37.7939² =
  38. 38.532² =
  39. 39.2437² =
  40. 40.598² =

Answer key

  1. 9030025
  2. 5938969
  3. 801025
  4. 10903204
  5. 73441
  6. 627264
  7. 133225
  8. 99261369
  9. 14630625
  10. 79524
  11. 89401
  12. 40401
  13. 247009
  14. 113569
  15. 369664
  16. 185761
  17. 16641
  18. 43560000
  19. 527076
  20. 277729
  21. 648025
  22. 611524
  23. 22201
  24. 22201
  25. 166464
  26. 829921
  27. 271441
  28. 447561
  29. 1371241
  30. 31329
  31. 305809
  32. 23104
  33. 28355625
  34. 749956
  35. 116281
  36. 196249
  37. 63027721
  38. 283024
  39. 5938969
  40. 357604

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