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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 528 · 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. 2.43² =
  3. 3.12² =
  4. 4.71² =
  5. 5.41² =
  6. 6.71² =
  7. 7.61² =
  8. 8.44² =
  9. 9.42² =
  10. 10.26² =
  11. 11.37² =
  12. 12.37² =
  13. 13.94² =
  14. 14.61² =
  15. 15.34² =
  16. 16.14² =
  17. 17.28² =
  18. 18.44² =
  19. 19.64² =
  20. 20.96² =
  21. 21.97² =
  22. 22.74² =
  23. 23.51² =
  24. 24.46² =
  25. 25.91² =
  26. 26.85² =
  27. 27.31² =
  28. 28.47² =
  29. 29.55² =
  30. 30.21² =
  31. 31.51² =
  32. 32.13² =
  33. 33.65² =
  34. 34.95² =
  35. 35.24² =
  36. 36.85² =
  37. 37.61² =
  38. 38.47² =
  39. 39.19² =
  40. 40.15² =

Answer key

  1. 441
  2. 1849
  3. 144
  4. 5041
  5. 1681
  6. 5041
  7. 3721
  8. 1936
  9. 1764
  10. 676
  11. 1369
  12. 1369
  13. 8836
  14. 3721
  15. 1156
  16. 196
  17. 784
  18. 1936
  19. 4096
  20. 9216
  21. 9409
  22. 5476
  23. 2601
  24. 2116
  25. 8281
  26. 7225
  27. 961
  28. 2209
  29. 3025
  30. 441
  31. 2601
  32. 169
  33. 4225
  34. 9025
  35. 576
  36. 7225
  37. 3721
  38. 2209
  39. 361
  40. 225

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