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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 100 · 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. 1.19² =
  2. 2.82² =
  3. 3.83² =
  4. 4.41² =
  5. 5.86² =
  6. 6.29² =
  7. 7.32² =
  8. 8.36² =
  9. 9.27² =
  10. 10.18² =
  11. 11.27² =
  12. 12.91² =
  13. 13.48² =
  14. 14.51² =
  15. 15.18² =
  16. 16.86² =
  17. 17.81² =
  18. 18.31² =
  19. 19.75² =
  20. 20.21² =
  21. 21.25² =
  22. 22.25² =
  23. 23.79² =
  24. 24.51² =
  25. 25.22² =
  26. 26.26² =
  27. 27.95² =
  28. 28.86² =
  29. 29.13² =
  30. 30.23² =
  31. 31.39² =
  32. 32.41² =
  33. 33.29² =
  34. 34.65² =
  35. 35.81² =
  36. 36.46² =
  37. 37.48² =
  38. 38.19² =
  39. 39.65² =
  40. 40.62² =

Answer key

  1. 361
  2. 6724
  3. 6889
  4. 1681
  5. 7396
  6. 841
  7. 1024
  8. 1296
  9. 729
  10. 324
  11. 729
  12. 8281
  13. 2304
  14. 2601
  15. 324
  16. 7396
  17. 6561
  18. 961
  19. 5625
  20. 441
  21. 625
  22. 625
  23. 6241
  24. 2601
  25. 484
  26. 676
  27. 9025
  28. 7396
  29. 169
  30. 529
  31. 1521
  32. 1681
  33. 841
  34. 4225
  35. 6561
  36. 2116
  37. 2304
  38. 361
  39. 4225
  40. 3844

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