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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 160 · 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. 1.23² =
  2. 2.85² =
  3. 3.63² =
  4. 4.69² =
  5. 5.12² =
  6. 6.73² =
  7. 7.14² =
  8. 8.68² =
  9. 9.64² =
  10. 10.78² =
  11. 11.83² =
  12. 12.75² =
  13. 13.24² =
  14. 14.61² =
  15. 15.99² =
  16. 16.98² =
  17. 17.51² =
  18. 18.16² =
  19. 19.23² =
  20. 20.15² =
  21. 21.24² =
  22. 22.26² =
  23. 23.58² =
  24. 24.67² =
  25. 25.56² =
  26. 26.31² =
  27. 27.95² =
  28. 28.91² =
  29. 29.31² =
  30. 30.46² =
  31. 31.29² =
  32. 32.35² =
  33. 33.71² =
  34. 34.45² =
  35. 35.24² =
  36. 36.61² =
  37. 37.89² =
  38. 38.36² =
  39. 39.15² =
  40. 40.77² =

Answer key

  1. 529
  2. 7225
  3. 3969
  4. 4761
  5. 144
  6. 5329
  7. 196
  8. 4624
  9. 4096
  10. 6084
  11. 6889
  12. 5625
  13. 576
  14. 3721
  15. 9801
  16. 9604
  17. 2601
  18. 256
  19. 529
  20. 225
  21. 576
  22. 676
  23. 3364
  24. 4489
  25. 3136
  26. 961
  27. 9025
  28. 8281
  29. 961
  30. 2116
  31. 841
  32. 1225
  33. 5041
  34. 2025
  35. 576
  36. 3721
  37. 7921
  38. 1296
  39. 225
  40. 5929

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