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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 231 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For the number ab: right column = b². Middle column = 2 × a × b. Left column = a². Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.21² =
  2. 2.47² =
  3. 3.21² =
  4. 4.81² =
  5. 5.97² =
  6. 6.89² =
  7. 7.16² =
  8. 8.89² =
  9. 9.74² =
  10. 10.97² =
  11. 11.36² =
  12. 12.77² =
  13. 13.13² =
  14. 14.53² =
  15. 15.58² =
  16. 16.48² =
  17. 17.54² =
  18. 18.52² =
  19. 19.72² =
  20. 20.91² =
  21. 21.21² =
  22. 22.89² =
  23. 23.81² =
  24. 24.59² =
  25. 25.34² =
  26. 26.25² =
  27. 27.31² =
  28. 28.91² =
  29. 29.86² =
  30. 30.18² =
  31. 31.36² =
  32. 32.38² =
  33. 33.37² =
  34. 34.35² =
  35. 35.58² =
  36. 36.16² =
  37. 37.41² =
  38. 38.91² =
  39. 39.83² =
  40. 40.45² =

Answer key

  1. 441
  2. 2209
  3. 441
  4. 6561
  5. 9409
  6. 7921
  7. 256
  8. 7921
  9. 5476
  10. 9409
  11. 1296
  12. 5929
  13. 169
  14. 2809
  15. 3364
  16. 2304
  17. 2916
  18. 2704
  19. 5184
  20. 8281
  21. 441
  22. 7921
  23. 6561
  24. 3481
  25. 1156
  26. 625
  27. 961
  28. 8281
  29. 7396
  30. 324
  31. 1296
  32. 1444
  33. 1369
  34. 1225
  35. 3364
  36. 256
  37. 1681
  38. 8281
  39. 6889
  40. 2025

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