You have to start at the first number on the right. In other words: When using binary it mainly is saying yes or no, 1 meaning yes, and 0 meaning no. 11001=25 Breakdown: 1=2^4 or 16 1=2^3 or 8 0=none.. If 1 then it would be 2^2 or 4 0=none.. If 1 then it would … Read more