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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 819 · 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. 1.73² =
  2. 2.49² =
  3. 3.18² =
  4. 4.51² =
  5. 5.41² =
  6. 6.74² =
  7. 7.34² =
  8. 8.46² =
  9. 9.84² =
  10. 10.67² =
  11. 11.13² =
  12. 12.41² =
  13. 13.71² =
  14. 14.19² =
  15. 15.74² =
  16. 16.63² =
  17. 17.52² =
  18. 18.47² =
  19. 19.18² =
  20. 20.61² =
  21. 21.87² =
  22. 22.34² =
  23. 23.15² =
  24. 24.23² =
  25. 25.61² =
  26. 26.58² =
  27. 27.19² =
  28. 28.96² =
  29. 29.55² =
  30. 30.31² =
  31. 31.41² =
  32. 32.13² =
  33. 33.12² =
  34. 34.68² =
  35. 35.97² =
  36. 36.59² =
  37. 37.49² =
  38. 38.54² =
  39. 39.34² =
  40. 40.21² =

Answer key

  1. 5329
  2. 2401
  3. 324
  4. 2601
  5. 1681
  6. 5476
  7. 1156
  8. 2116
  9. 7056
  10. 4489
  11. 169
  12. 1681
  13. 5041
  14. 361
  15. 5476
  16. 3969
  17. 2704
  18. 2209
  19. 324
  20. 3721
  21. 7569
  22. 1156
  23. 225
  24. 529
  25. 3721
  26. 3364
  27. 361
  28. 9216
  29. 3025
  30. 961
  31. 1681
  32. 169
  33. 144
  34. 4624
  35. 9409
  36. 3481
  37. 2401
  38. 2916
  39. 1156
  40. 441

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