According to the order of operations, expressions inside parentheses are evaluated before multiplication and division, while addition and subtraction are evaluated last. For the given expression, this means evaluating the expression inside the parentheses completely before multiplying it.
5(3*5-4)
Notice also that even within this parenthetical expression, we must obey the order of operations.
3*5-4
For this, we must remember to evaluate the multiplication first.
Operation
Before Simplification
After Simplification
Multiply
5( 3*5-4)
5( 15-4)
Subtract term
5( 15-4)
5( 11)
Multiply
5(11)
55
The expression equals 55.
Alternative Solution
Using a Calculator
We can also evaluate this expression using a calculator. To do so, type it as shown below.
