Grouping symbols such as parentheses brackets braces and fraction bars can be used to further control the order of the four basic arithmetic operations. 3 2 6 4 5 2 52. Thus sin 3 x sin3 x rather than sin3 x but sin x y sin x y because x y is not a monomial.
A ddition and S ubtraction left-to-right Divide and Multiply rank equally and go left to right.
3 2 6 4 5 2 52. When you see a math problem containing parentheses you need to use the order of operations to solve it. Brackets and curly-braces the and characters are used when there are nested parentheses as an aid to keeping track of which parentheses go with which. Separating Numbers for Clarity Parentheses.