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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 191 · 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. 1.42² =
  2. 2.28² =
  3. 3.72² =
  4. 4.15² =
  5. 5.23² =
  6. 6.12² =
  7. 7.19² =
  8. 8.33² =
  9. 9.76² =
  10. 10.86² =
  11. 11.66² =
  12. 12.38² =
  13. 13.81² =
  14. 14.75² =
  15. 15.21² =
  16. 16.98² =
  17. 17.93² =
  18. 18.79² =
  19. 19.71² =
  20. 20.27² =
  21. 21.15² =
  22. 22.14² =
  23. 23.33² =
  24. 24.17² =
  25. 25.61² =
  26. 26.69² =
  27. 27.63² =
  28. 28.43² =
  29. 29.87² =
  30. 30.99² =
  31. 31.74² =
  32. 32.98² =
  33. 33.86² =
  34. 34.22² =
  35. 35.91² =
  36. 36.57² =
  37. 37.82² =
  38. 38.69² =
  39. 39.15² =
  40. 40.36² =

Answer key

  1. 1764
  2. 784
  3. 5184
  4. 225
  5. 529
  6. 144
  7. 361
  8. 1089
  9. 5776
  10. 7396
  11. 4356
  12. 1444
  13. 6561
  14. 5625
  15. 441
  16. 9604
  17. 8649
  18. 6241
  19. 5041
  20. 729
  21. 225
  22. 196
  23. 1089
  24. 289
  25. 3721
  26. 4761
  27. 3969
  28. 1849
  29. 7569
  30. 9801
  31. 5476
  32. 9604
  33. 7396
  34. 484
  35. 8281
  36. 3249
  37. 6724
  38. 4761
  39. 225
  40. 1296

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