What plus what equals 100?

Answer 1

The sum of two numbers that equals 100 can be expressed as a mathematical equation: x + y = 100. The two numbers can be any pair of values that, when added together, result in 100. Examples of such pairs include 50 and 50, 60 and 40, or even decimals like 25.5 and 74.5.

Answer 2

Well, honey, it's not rocket science. All you gotta do is put on your big girl pants and combine 50 with 50. Voilà! You've got yourself a nice, round 100.