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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 591 · 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. 2.41² =
  3. 3.75² =
  4. 4.15² =
  5. 5.23² =
  6. 6.21² =
  7. 7.49² =
  8. 8.95² =
  9. 9.31² =
  10. 10.71² =
  11. 11.19² =
  12. 12.99² =
  13. 13.74² =
  14. 14.55² =
  15. 15.19² =
  16. 16.83² =
  17. 17.84² =
  18. 18.46² =
  19. 19.98² =
  20. 20.28² =
  21. 21.65² =
  22. 22.22² =
  23. 23.45² =
  24. 24.15² =
  25. 25.68² =
  26. 26.62² =
  27. 27.47² =
  28. 28.22² =
  29. 29.48² =
  30. 30.35² =
  31. 31.77² =
  32. 32.35² =
  33. 33.18² =
  34. 34.37² =
  35. 35.56² =
  36. 36.51² =
  37. 37.33² =
  38. 38.48² =
  39. 39.28² =
  40. 40.36² =

Answer key

  1. 441
  2. 1681
  3. 5625
  4. 225
  5. 529
  6. 441
  7. 2401
  8. 9025
  9. 961
  10. 5041
  11. 361
  12. 9801
  13. 5476
  14. 3025
  15. 361
  16. 6889
  17. 7056
  18. 2116
  19. 9604
  20. 784
  21. 4225
  22. 484
  23. 2025
  24. 225
  25. 4624
  26. 3844
  27. 2209
  28. 484
  29. 2304
  30. 1225
  31. 5929
  32. 1225
  33. 324
  34. 1369
  35. 3136
  36. 2601
  37. 1089
  38. 2304
  39. 784
  40. 1296

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