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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 721 · 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. 1.17² =
  2. 2.63² =
  3. 3.28² =
  4. 4.79² =
  5. 5.81² =
  6. 6.21² =
  7. 7.18² =
  8. 8.67² =
  9. 9.16² =
  10. 10.19² =
  11. 11.16² =
  12. 12.35² =
  13. 13.67² =
  14. 14.73² =
  15. 15.91² =
  16. 16.94² =
  17. 17.21² =
  18. 18.71² =
  19. 19.32² =
  20. 20.43² =
  21. 21.17² =
  22. 22.58² =
  23. 23.27² =
  24. 24.76² =
  25. 25.83² =
  26. 26.13² =
  27. 27.61² =
  28. 28.62² =
  29. 29.98² =
  30. 30.68² =
  31. 31.73² =
  32. 32.59² =
  33. 33.11² =
  34. 34.94² =
  35. 35.71² =
  36. 36.67² =
  37. 37.69² =
  38. 38.14² =
  39. 39.87² =
  40. 40.13² =

Answer key

  1. 289
  2. 3969
  3. 784
  4. 6241
  5. 6561
  6. 441
  7. 324
  8. 4489
  9. 256
  10. 361
  11. 256
  12. 1225
  13. 4489
  14. 5329
  15. 8281
  16. 8836
  17. 441
  18. 5041
  19. 1024
  20. 1849
  21. 289
  22. 3364
  23. 729
  24. 5776
  25. 6889
  26. 169
  27. 3721
  28. 3844
  29. 9604
  30. 4624
  31. 5329
  32. 3481
  33. 121
  34. 8836
  35. 5041
  36. 4489
  37. 4761
  38. 196
  39. 7569
  40. 169

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