Even though this question is about too basic a thing, I'd like to ask due to the significance it holds in math. And this question might have a duplication issue as in other questions like Why do so many people say "equals to" in maths? similar topics were dealt with.
But as there is no question precisely focusing on the difference between the two when used in math, I have come to ask this.
In math, is '=' read as either 'equals' or 'is equal to' and is there no difference between them at all? Are there no cases in math one can be used and the other can't?
For instance, when you read 3 + 2 = 5, can I read it as either three plus two equals five or three plus two is equal to five, and the same rule applies to an equation where there are variables as in A + 2 = 5, A = 3?