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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 521 · 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. 1.39² =
  2. 2.25² =
  3. 3.41² =
  4. 4.41² =
  5. 5.47² =
  6. 6.67² =
  7. 7.59² =
  8. 8.12² =
  9. 9.84² =
  10. 10.32² =
  11. 11.31² =
  12. 12.22² =
  13. 13.79² =
  14. 14.23² =
  15. 15.21² =
  16. 16.16² =
  17. 17.48² =
  18. 18.61² =
  19. 19.84² =
  20. 20.63² =
  21. 21.77² =
  22. 22.87² =
  23. 23.34² =
  24. 24.14² =
  25. 25.32² =
  26. 26.14² =
  27. 27.31² =
  28. 28.45² =
  29. 29.47² =
  30. 30.61² =
  31. 31.75² =
  32. 32.93² =
  33. 33.69² =
  34. 34.17² =
  35. 35.34² =
  36. 36.81² =
  37. 37.71² =
  38. 38.12² =
  39. 39.58² =
  40. 40.65² =

Answer key

  1. 1521
  2. 625
  3. 1681
  4. 1681
  5. 2209
  6. 4489
  7. 3481
  8. 144
  9. 7056
  10. 1024
  11. 961
  12. 484
  13. 6241
  14. 529
  15. 441
  16. 256
  17. 2304
  18. 3721
  19. 7056
  20. 3969
  21. 5929
  22. 7569
  23. 1156
  24. 196
  25. 1024
  26. 196
  27. 961
  28. 2025
  29. 2209
  30. 3721
  31. 5625
  32. 8649
  33. 4761
  34. 289
  35. 1156
  36. 6561
  37. 5041
  38. 144
  39. 3364
  40. 4225

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