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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 900 · 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. 1.31² =
  2. 2.82² =
  3. 3.55² =
  4. 4.88² =
  5. 5.86² =
  6. 6.15² =
  7. 7.87² =
  8. 8.17² =
  9. 9.41² =
  10. 10.41² =
  11. 11.92² =
  12. 12.44² =
  13. 13.79² =
  14. 14.75² =
  15. 15.18² =
  16. 16.12² =
  17. 17.81² =
  18. 18.46² =
  19. 19.91² =
  20. 20.44² =
  21. 21.61² =
  22. 22.73² =
  23. 23.27² =
  24. 24.91² =
  25. 25.81² =
  26. 26.81² =
  27. 27.76² =
  28. 28.83² =
  29. 29.81² =
  30. 30.18² =
  31. 31.51² =
  32. 32.69² =
  33. 33.81² =
  34. 34.41² =
  35. 35.91² =
  36. 36.34² =
  37. 37.61² =
  38. 38.21² =
  39. 39.16² =
  40. 40.23² =

Answer key

  1. 961
  2. 6724
  3. 3025
  4. 7744
  5. 7396
  6. 225
  7. 7569
  8. 289
  9. 1681
  10. 1681
  11. 8464
  12. 1936
  13. 6241
  14. 5625
  15. 324
  16. 144
  17. 6561
  18. 2116
  19. 8281
  20. 1936
  21. 3721
  22. 5329
  23. 729
  24. 8281
  25. 6561
  26. 6561
  27. 5776
  28. 6889
  29. 6561
  30. 324
  31. 2601
  32. 4761
  33. 6561
  34. 1681
  35. 8281
  36. 1156
  37. 3721
  38. 441
  39. 256
  40. 529

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