Question

What is the Formula of checking adition ?​

Answer 1

there are many ways to check addition

one of them is

2+3=5

you want to make sure that 2+3=5 so you have to do 5-3

if you get 2 then 2+3=5 is correct the same formula can be used with other digits

formula=a+b=c

=c-b=a

Answer 2

Answer:

(Number)+(Number)=(Answer of the question)

Example:

4+7=11