The expression is \ \

\

                               (Substitute 10 for x and 8 for y)

To simplify the expression follow the order of operations: (PEMDAS)

1.     Evaluate the expressions inside Brackets/Parenthesis (P).

2.     Evaluate Powers/Exponents (E).

3.     Multiply and/or Divide in order from left to right (MD).

4.     Add and/or Subtract in order from left to right (AS).

A simple technique for remembering the order pf operations is turned into phrase

“Please Excuse My Dear Aunty Sally” \ \ In the given expression there are no grouping symbols and powers.

First operation is Subtraction.

                                 (Subtract: )

Next operation is addition.

                                       (Add: )

Next operation is division.

                                          (Divide: )

The value of the expression is .