Math_Team
Updated: 
2016
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Resource
  • Math
  • Middle School
Take the sum of the squares of its digits; 32 + 42 = 9 + 16 = 25;25 => 22 + 52 = 4 + 25 = 29;29 => 22 + 92 = 4 + 81 = 85;85 => 82 + 52 = 64...