The answer is 2. I got this answer from hours of work so make sure to read carefully. First you do 50 divided by 2 witch is 25 then you subtract 24-24=-1 and then you add 100 plus -1 witch is 99 then you subtract 98 witch is 1 then you add 3 witch is 4 then divide that by 2 witch is the answer witch is 2. And that’s how you solve 1 plus 1. Hope this helped :D