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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 927 · 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. 1.1001² =
  2. 2.303² =
  3. 3.549² =
  4. 4.9966² =
  5. 5.720² =
  6. 6.313² =
  7. 7.7276² =
  8. 8.498² =
  9. 9.519² =
  10. 10.2405² =
  11. 11.353² =
  12. 12.9867² =
  13. 13.3214² =
  14. 14.185² =
  15. 15.614² =
  16. 16.1928² =
  17. 17.603² =
  18. 18.342² =
  19. 19.2220² =
  20. 20.910² =
  21. 21.8596² =
  22. 22.415² =
  23. 23.391² =
  24. 24.2534² =
  25. 25.947² =
  26. 26.663² =
  27. 27.209² =
  28. 28.461² =
  29. 29.299² =
  30. 30.656² =
  31. 31.633² =
  32. 32.630² =
  33. 33.533² =
  34. 34.7585² =
  35. 35.3208² =
  36. 36.293² =
  37. 37.986² =
  38. 38.710² =
  39. 39.663² =
  40. 40.395² =

Answer key

  1. 1002001
  2. 91809
  3. 301401
  4. 99321156
  5. 518400
  6. 97969
  7. 52940176
  8. 248004
  9. 269361
  10. 5784025
  11. 124609
  12. 97357689
  13. 10329796
  14. 34225
  15. 376996
  16. 3717184
  17. 363609
  18. 116964
  19. 4928400
  20. 828100
  21. 73891216
  22. 172225
  23. 152881
  24. 6421156
  25. 896809
  26. 439569
  27. 43681
  28. 212521
  29. 89401
  30. 430336
  31. 400689
  32. 396900
  33. 284089
  34. 57532225
  35. 10291264
  36. 85849
  37. 972196
  38. 504100
  39. 439569
  40. 156025

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