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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 98 · 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. 1.21² =
  2. 2.18² =
  3. 3.28² =
  4. 4.96² =
  5. 5.48² =
  6. 6.14² =
  7. 7.82² =
  8. 8.28² =
  9. 9.68² =
  10. 10.92² =
  11. 11.45² =
  12. 12.72² =
  13. 13.89² =
  14. 14.76² =
  15. 15.19² =
  16. 16.59² =
  17. 17.66² =
  18. 18.83² =
  19. 19.58² =
  20. 20.76² =
  21. 21.69² =
  22. 22.29² =
  23. 23.89² =
  24. 24.74² =
  25. 25.97² =
  26. 26.88² =
  27. 27.34² =
  28. 28.57² =
  29. 29.33² =
  30. 30.31² =
  31. 31.83² =
  32. 32.85² =
  33. 33.87² =
  34. 34.54² =
  35. 35.77² =
  36. 36.39² =
  37. 37.87² =
  38. 38.95² =
  39. 39.91² =
  40. 40.54² =

Answer key

  1. 441
  2. 324
  3. 784
  4. 9216
  5. 2304
  6. 196
  7. 6724
  8. 784
  9. 4624
  10. 8464
  11. 2025
  12. 5184
  13. 7921
  14. 5776
  15. 361
  16. 3481
  17. 4356
  18. 6889
  19. 3364
  20. 5776
  21. 4761
  22. 841
  23. 7921
  24. 5476
  25. 9409
  26. 7744
  27. 1156
  28. 3249
  29. 1089
  30. 961
  31. 6889
  32. 7225
  33. 7569
  34. 2916
  35. 5929
  36. 1521
  37. 7569
  38. 9025
  39. 8281
  40. 2916

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