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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 218 · 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. 1.81² =
  2. 2.31² =
  3. 3.91² =
  4. 4.28² =
  5. 5.71² =
  6. 6.95² =
  7. 7.63² =
  8. 8.88² =
  9. 9.19² =
  10. 10.59² =
  11. 11.33² =
  12. 12.78² =
  13. 13.29² =
  14. 14.43² =
  15. 15.21² =
  16. 16.51² =
  17. 17.19² =
  18. 18.83² =
  19. 19.64² =
  20. 20.47² =
  21. 21.12² =
  22. 22.97² =
  23. 23.22² =
  24. 24.66² =
  25. 25.31² =
  26. 26.83² =
  27. 27.27² =
  28. 28.15² =
  29. 29.86² =
  30. 30.51² =
  31. 31.54² =
  32. 32.12² =
  33. 33.68² =
  34. 34.13² =
  35. 35.13² =
  36. 36.64² =
  37. 37.64² =
  38. 38.66² =
  39. 39.33² =
  40. 40.27² =

Answer key

  1. 6561
  2. 961
  3. 8281
  4. 784
  5. 5041
  6. 9025
  7. 3969
  8. 7744
  9. 361
  10. 3481
  11. 1089
  12. 6084
  13. 841
  14. 1849
  15. 441
  16. 2601
  17. 361
  18. 6889
  19. 4096
  20. 2209
  21. 144
  22. 9409
  23. 484
  24. 4356
  25. 961
  26. 6889
  27. 729
  28. 225
  29. 7396
  30. 2601
  31. 2916
  32. 144
  33. 4624
  34. 169
  35. 169
  36. 4096
  37. 4096
  38. 4356
  39. 1089
  40. 729

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