Simplify all operations inside parentheses. Any operations contained in parentheses are answered first. This also applies to these enclosure symbols: { } and [ ]. If parentheses are enclosed within other parentheses, work from the inside out.
Simplify all exponents, working from left to right. Remember that the exponent is attached to the number or variable it is closest to. Treat any square roots as exponents.
Perform all multiplications and divisions, working from left to right.
Perform all additions and subtractions, working from left to right.