9 - 2 6. In calculations the strongest operations - Powers and roots are done first. If grouping symbols are used such as parentheses perform the operations inside the grouping symbols first.
Add and Subtract rank equally and go left to right So do it this way.
Mathematicians have devised a standard order of operations for calculations involving more than one arithmetic operation. Then go from left to right doing any A or S as you find them. Computations are kept simple with emphasis on understanding the order of operations. If grouping symbols are used such as parentheses perform the operations inside the grouping symbols first.