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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 89 · 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. 1.25² =
  2. 2.45² =
  3. 3.26² =
  4. 4.93² =
  5. 5.47² =
  6. 6.51² =
  7. 7.18² =
  8. 8.19² =
  9. 9.62² =
  10. 10.77² =
  11. 11.28² =
  12. 12.24² =
  13. 13.42² =
  14. 14.62² =
  15. 15.55² =
  16. 16.48² =
  17. 17.47² =
  18. 18.27² =
  19. 19.94² =
  20. 20.43² =
  21. 21.11² =
  22. 22.33² =
  23. 23.99² =
  24. 24.74² =
  25. 25.92² =
  26. 26.31² =
  27. 27.13² =
  28. 28.28² =
  29. 29.58² =
  30. 30.78² =
  31. 31.93² =
  32. 32.78² =
  33. 33.87² =
  34. 34.31² =
  35. 35.77² =
  36. 36.31² =
  37. 37.81² =
  38. 38.62² =
  39. 39.36² =
  40. 40.77² =

Answer key

  1. 625
  2. 2025
  3. 676
  4. 8649
  5. 2209
  6. 2601
  7. 324
  8. 361
  9. 3844
  10. 5929
  11. 784
  12. 576
  13. 1764
  14. 3844
  15. 3025
  16. 2304
  17. 2209
  18. 729
  19. 8836
  20. 1849
  21. 121
  22. 1089
  23. 9801
  24. 5476
  25. 8464
  26. 961
  27. 169
  28. 784
  29. 3364
  30. 6084
  31. 8649
  32. 6084
  33. 7569
  34. 961
  35. 5929
  36. 961
  37. 6561
  38. 3844
  39. 1296
  40. 5929

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