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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 47 · 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. 1.81² =
  2. 2.19² =
  3. 3.33² =
  4. 4.45² =
  5. 5.44² =
  6. 6.52² =
  7. 7.28² =
  8. 8.41² =
  9. 9.37² =
  10. 10.48² =
  11. 11.93² =
  12. 12.41² =
  13. 13.18² =
  14. 14.98² =
  15. 15.24² =
  16. 16.18² =
  17. 17.56² =
  18. 18.19² =
  19. 19.27² =
  20. 20.42² =
  21. 21.54² =
  22. 22.35² =
  23. 23.67² =
  24. 24.41² =
  25. 25.89² =
  26. 26.78² =
  27. 27.88² =
  28. 28.51² =
  29. 29.29² =
  30. 30.58² =
  31. 31.24² =
  32. 32.31² =
  33. 33.32² =
  34. 34.84² =
  35. 35.61² =
  36. 36.63² =
  37. 37.47² =
  38. 38.96² =
  39. 39.75² =
  40. 40.79² =

Answer key

  1. 6561
  2. 361
  3. 1089
  4. 2025
  5. 1936
  6. 2704
  7. 784
  8. 1681
  9. 1369
  10. 2304
  11. 8649
  12. 1681
  13. 324
  14. 9604
  15. 576
  16. 324
  17. 3136
  18. 361
  19. 729
  20. 1764
  21. 2916
  22. 1225
  23. 4489
  24. 1681
  25. 7921
  26. 6084
  27. 7744
  28. 2601
  29. 841
  30. 3364
  31. 576
  32. 961
  33. 1024
  34. 7056
  35. 3721
  36. 3969
  37. 2209
  38. 9216
  39. 5625
  40. 6241

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