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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 261 · 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. 1.29² =
  2. 2.47² =
  3. 3.39² =
  4. 4.61² =
  5. 5.29² =
  6. 6.83² =
  7. 7.21² =
  8. 8.13² =
  9. 9.18² =
  10. 10.85² =
  11. 11.84² =
  12. 12.88² =
  13. 13.29² =
  14. 14.85² =
  15. 15.74² =
  16. 16.82² =
  17. 17.43² =
  18. 18.89² =
  19. 19.77² =
  20. 20.64² =
  21. 21.29² =
  22. 22.36² =
  23. 23.43² =
  24. 24.85² =
  25. 25.37² =
  26. 26.31² =
  27. 27.58² =
  28. 28.85² =
  29. 29.79² =
  30. 30.33² =
  31. 31.19² =
  32. 32.74² =
  33. 33.13² =
  34. 34.86² =
  35. 35.19² =
  36. 36.16² =
  37. 37.84² =
  38. 38.13² =
  39. 39.55² =
  40. 40.83² =

Answer key

  1. 841
  2. 2209
  3. 1521
  4. 3721
  5. 841
  6. 6889
  7. 441
  8. 169
  9. 324
  10. 7225
  11. 7056
  12. 7744
  13. 841
  14. 7225
  15. 5476
  16. 6724
  17. 1849
  18. 7921
  19. 5929
  20. 4096
  21. 841
  22. 1296
  23. 1849
  24. 7225
  25. 1369
  26. 961
  27. 3364
  28. 7225
  29. 6241
  30. 1089
  31. 361
  32. 5476
  33. 169
  34. 7396
  35. 361
  36. 256
  37. 7056
  38. 169
  39. 3025
  40. 6889

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