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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 380 · 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. 2.73² =
  3. 3.63² =
  4. 4.27² =
  5. 5.32² =
  6. 6.73² =
  7. 7.94² =
  8. 8.68² =
  9. 9.11² =
  10. 10.43² =
  11. 11.66² =
  12. 12.31² =
  13. 13.14² =
  14. 14.76² =
  15. 15.31² =
  16. 16.61² =
  17. 17.24² =
  18. 18.52² =
  19. 19.21² =
  20. 20.21² =
  21. 21.38² =
  22. 22.51² =
  23. 23.43² =
  24. 24.71² =
  25. 25.16² =
  26. 26.18² =
  27. 27.87² =
  28. 28.25² =
  29. 29.65² =
  30. 30.77² =
  31. 31.68² =
  32. 32.18² =
  33. 33.81² =
  34. 34.17² =
  35. 35.42² =
  36. 36.39² =
  37. 37.28² =
  38. 38.21² =
  39. 39.32² =
  40. 40.97² =

Answer key

  1. 529
  2. 5329
  3. 3969
  4. 729
  5. 1024
  6. 5329
  7. 8836
  8. 4624
  9. 121
  10. 1849
  11. 4356
  12. 961
  13. 196
  14. 5776
  15. 961
  16. 3721
  17. 576
  18. 2704
  19. 441
  20. 441
  21. 1444
  22. 2601
  23. 1849
  24. 5041
  25. 256
  26. 324
  27. 7569
  28. 625
  29. 4225
  30. 5929
  31. 4624
  32. 324
  33. 6561
  34. 289
  35. 1764
  36. 1521
  37. 784
  38. 441
  39. 1024
  40. 9409

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