Use the order of operations to simplify the expressions in the next two questions.
15 – 6 • 9 ÷ 2 + 10
16. 4 • (6 + 3) + 5
multiplication and division first, then addition and subtraction, all done left to right:
15 – 6 • 9 ÷ 2 + 10
15 – 54 ÷ 2 + 10
15 - 27 + 10
-12 + 10
-2
Evaluate parenthesized expressions first of all:
4 • (6 + 3) + 5
4 • (9) + 5
36 + 5
41