Math and open mindedness

On Facebook someone posted that 4+5 =9 but so did 3+6.

So does 7+2, 8+1, 10-1, 109-100, and there are millions of other ways to reach 9.

In other words there is more than one way to do things.

Open mindedness helps in problem solving and there can be more than one way to come to the right answer.