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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 420 · 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. 1.29² =
  2. 2.23² =
  3. 3.17² =
  4. 4.27² =
  5. 5.36² =
  6. 6.56² =
  7. 7.99² =
  8. 8.74² =
  9. 9.91² =
  10. 10.98² =
  11. 11.57² =
  12. 12.55² =
  13. 13.71² =
  14. 14.86² =
  15. 15.19² =
  16. 16.64² =
  17. 17.83² =
  18. 18.37² =
  19. 19.82² =
  20. 20.41² =
  21. 21.41² =
  22. 22.33² =
  23. 23.25² =
  24. 24.78² =
  25. 25.76² =
  26. 26.21² =
  27. 27.84² =
  28. 28.81² =
  29. 29.26² =
  30. 30.67² =
  31. 31.79² =
  32. 32.88² =
  33. 33.62² =
  34. 34.76² =
  35. 35.52² =
  36. 36.93² =
  37. 37.98² =
  38. 38.82² =
  39. 39.39² =
  40. 40.68² =

Answer key

  1. 841
  2. 529
  3. 289
  4. 729
  5. 1296
  6. 3136
  7. 9801
  8. 5476
  9. 8281
  10. 9604
  11. 3249
  12. 3025
  13. 5041
  14. 7396
  15. 361
  16. 4096
  17. 6889
  18. 1369
  19. 6724
  20. 1681
  21. 1681
  22. 1089
  23. 625
  24. 6084
  25. 5776
  26. 441
  27. 7056
  28. 6561
  29. 676
  30. 4489
  31. 6241
  32. 7744
  33. 3844
  34. 5776
  35. 2704
  36. 8649
  37. 9604
  38. 6724
  39. 1521
  40. 4624

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