Order of operations in the calculator popup

The calculator follows the standard order of operations, performing calculations in this order:

(1) Expressions within parentheses. For parentheses within parentheses, the inner-most expressions are evaluated first.

(2) Multiplication and division in the order in which they are entered.

(3) Addition and subtraction in the order in which they are entered.

For example, if you enter the expression 6 * (2 + 1) + 15 / 3 * 2 and click =, the calculator performs the operations in this order:

(1) 6 * 3 + 15 / 3 * 2 (parenthetical expressions)

(2) 18 + 10 (multiplication and division in the order in which they are entered)

(3) 28 (addition and subtraction in the order in which they are entered)