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Squares of 2 Digit Numbers Worksheet

Vedic maths trick 7: Squares of 2-digit numbers · Set 66 · 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. 1.41² =
  2. 2.61² =
  3. 3.54² =
  4. 4.91² =
  5. 5.17² =
  6. 6.15² =
  7. 7.67² =
  8. 8.38² =
  9. 9.33² =
  10. 10.33² =
  11. 11.57² =
  12. 12.79² =
  13. 13.28² =
  14. 14.25² =
  15. 15.61² =
  16. 16.91² =
  17. 17.21² =
  18. 18.82² =
  19. 19.25² =
  20. 20.14² =
  21. 21.93² =
  22. 22.58² =
  23. 23.33² =
  24. 24.71² =
  25. 25.17² =
  26. 26.48² =
  27. 27.67² =
  28. 28.29² =
  29. 29.55² =
  30. 30.82² =
  31. 31.91² =
  32. 32.95² =
  33. 33.76² =
  34. 34.43² =
  35. 35.67² =
  36. 36.61² =
  37. 37.39² =
  38. 38.97² =
  39. 39.35² =
  40. 40.12² =

Answer key

  1. 1681
  2. 3721
  3. 2916
  4. 8281
  5. 289
  6. 225
  7. 4489
  8. 1444
  9. 1089
  10. 1089
  11. 3249
  12. 6241
  13. 784
  14. 625
  15. 3721
  16. 8281
  17. 441
  18. 6724
  19. 625
  20. 196
  21. 8649
  22. 3364
  23. 1089
  24. 5041
  25. 289
  26. 2304
  27. 4489
  28. 841
  29. 3025
  30. 6724
  31. 8281
  32. 9025
  33. 5776
  34. 1849
  35. 4489
  36. 3721
  37. 1521
  38. 9409
  39. 1225
  40. 144

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