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Square Root Worksheet

Vedic maths trick 9: Square roots of perfect squares · Set 995 · 40 sums
TalentJR

The trick (Vilokanam): Last digit → the root ends in one of two digits: 1↔9, 4↔2/8, 9↔3/7, 6↔4/6, 5→5, 0→0. Remove the last two digits; the biggest square not more than what is left gives the tens digit. Pick the ending: compare the number with (tens × 10 + 5)² — bigger means the bigger ending.

NameDateTime takenScore ___ / 40
  1. 1.√2704 =
  2. 2.√144 =
  3. 3.√676 =
  4. 4.√8649 =
  5. 5.√6724 =
  6. 6.√2916 =
  7. 7.√6241 =
  8. 8.√3844 =
  9. 9.√2116 =
  10. 10.√576 =
  11. 11.√2116 =
  12. 12.√7396 =
  13. 13.√289 =
  14. 14.√4096 =
  15. 15.√3025 =
  16. 16.√196 =
  17. 17.√484 =
  18. 18.√1225 =
  19. 19.√676 =
  20. 20.√169 =
  21. 21.√2401 =
  22. 22.√9604 =
  23. 23.√6241 =
  24. 24.√1089 =
  25. 25.√784 =
  26. 26.√676 =
  27. 27.√324 =
  28. 28.√625 =
  29. 29.√4356 =
  30. 30.√6241 =
  31. 31.√9801 =
  32. 32.√3721 =
  33. 33.√7921 =
  34. 34.√1089 =
  35. 35.√5329 =
  36. 36.√9604 =
  37. 37.√5041 =
  38. 38.√3481 =
  39. 39.√5776 =
  40. 40.√9025 =

Answer key

  1. 52
  2. 12
  3. 26
  4. 93
  5. 82
  6. 54
  7. 79
  8. 62
  9. 46
  10. 24
  11. 46
  12. 86
  13. 17
  14. 64
  15. 55
  16. 14
  17. 22
  18. 35
  19. 26
  20. 13
  21. 49
  22. 98
  23. 79
  24. 33
  25. 28
  26. 26
  27. 18
  28. 25
  29. 66
  30. 79
  31. 99
  32. 61
  33. 89
  34. 33
  35. 73
  36. 98
  37. 71
  38. 59
  39. 76
  40. 95

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