Answer
$18$
Work Step by Step
The order of operations states that first we perform operations inside grouping symbols, such as parentheses, brackets, and fraction bars. Then, we simplify powers. Then, we multiply and divide from left to right. Finally, we add and subtract from left to right.
Start with given expression: $5\times2^2\div2+8$
Since there are no grouping symbols, first we simplify powers: $5\times4\div2+8$
Next, we multiply and divide, from left to right: $20\div2+8=10+8$
Finally, we add: $18$
