who discovered addition and subtraction.
Addition and subtraction are reverse operations.
definiton of addition and subtraction
Addition and subtraction are inverse functions.
Subtraction is the addition of a negative number.
Subtraction can be seen as the inverse operation to addition.
Addition is a sum and so is subtraction. So there's your answer!
You don't. You can check addition with subtraction or subtraction with addition, since subtraction is the opposite of addition. Similary, you can check division with multiplication, or vice versa.
addition Sum is the result of an addition problem. Difference is the result of a subtraction problem.
Subtraction is the opposite of addition.
The opposite of addition is subtraction.