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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 992 · 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. 1.63² =
  2. 2.47² =
  3. 3.12² =
  4. 4.81² =
  5. 5.29² =
  6. 6.86² =
  7. 7.14² =
  8. 8.17² =
  9. 9.71² =
  10. 10.21² =
  11. 11.53² =
  12. 12.41² =
  13. 13.35² =
  14. 14.61² =
  15. 15.46² =
  16. 16.41² =
  17. 17.99² =
  18. 18.39² =
  19. 19.85² =
  20. 20.19² =
  21. 21.86² =
  22. 22.18² =
  23. 23.89² =
  24. 24.61² =
  25. 25.13² =
  26. 26.47² =
  27. 27.51² =
  28. 28.91² =
  29. 29.24² =
  30. 30.44² =
  31. 31.11² =
  32. 32.22² =
  33. 33.38² =
  34. 34.59² =
  35. 35.56² =
  36. 36.45² =
  37. 37.83² =
  38. 38.21² =
  39. 39.91² =
  40. 40.39² =

Answer key

  1. 3969
  2. 2209
  3. 144
  4. 6561
  5. 841
  6. 7396
  7. 196
  8. 289
  9. 5041
  10. 441
  11. 2809
  12. 1681
  13. 1225
  14. 3721
  15. 2116
  16. 1681
  17. 9801
  18. 1521
  19. 7225
  20. 361
  21. 7396
  22. 324
  23. 7921
  24. 3721
  25. 169
  26. 2209
  27. 2601
  28. 8281
  29. 576
  30. 1936
  31. 121
  32. 484
  33. 1444
  34. 3481
  35. 3136
  36. 2025
  37. 6889
  38. 441
  39. 8281
  40. 1521

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