Subtraction is a basic arithmetic operation of taking away one number from another number. The operation is the opposite of addition.
The properties of the subtraction can be reduced to the same properties of addition by observing that subtracting one expression from another is the same as adding the negative of the expression.
Addition is a basic operation in mathematics for combining two numbers together. It is a binary operation denoted with the plus symbol with an expression on the left and an expression on the right.