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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 151 · 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. 1.63² =
  2. 2.17² =
  3. 3.77² =
  4. 4.91² =
  5. 5.73² =
  6. 6.23² =
  7. 7.32² =
  8. 8.17² =
  9. 9.85² =
  10. 10.32² =
  11. 11.82² =
  12. 12.15² =
  13. 13.14² =
  14. 14.18² =
  15. 15.56² =
  16. 16.75² =
  17. 17.39² =
  18. 18.52² =
  19. 19.44² =
  20. 20.47² =
  21. 21.79² =
  22. 22.49² =
  23. 23.43² =
  24. 24.93² =
  25. 25.66² =
  26. 26.88² =
  27. 27.11² =
  28. 28.24² =
  29. 29.78² =
  30. 30.43² =
  31. 31.31² =
  32. 32.77² =
  33. 33.49² =
  34. 34.29² =
  35. 35.16² =
  36. 36.72² =
  37. 37.81² =
  38. 38.91² =
  39. 39.92² =
  40. 40.14² =

Answer key

  1. 3969
  2. 289
  3. 5929
  4. 8281
  5. 5329
  6. 529
  7. 1024
  8. 289
  9. 7225
  10. 1024
  11. 6724
  12. 225
  13. 196
  14. 324
  15. 3136
  16. 5625
  17. 1521
  18. 2704
  19. 1936
  20. 2209
  21. 6241
  22. 2401
  23. 1849
  24. 8649
  25. 4356
  26. 7744
  27. 121
  28. 576
  29. 6084
  30. 1849
  31. 961
  32. 5929
  33. 2401
  34. 841
  35. 256
  36. 5184
  37. 6561
  38. 8281
  39. 8464
  40. 196

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