Question

Evaluate the expression.

$18-3\cdot 2$

Short answer

The value of the expression is12.

Step-by-step solution

Step 1  . Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

• First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
• Evaluate the exponents.
• Perform Multiplication and division from left to right.
• Perform addition and subtraction from left to right.

Step 2  . Multiply from left to right

To evaluate the given expression, since there is no grouping symbol so multiply the numbers to get

$\begin{array}{c}18-3\cdot 2\\ =18-6\end{array}$

Step 3  . Subtract the numbers

Now to simplify further, subtract the numbers to get

$\begin{array}{l}18-6\\ =12\end{array}$

Thus, the value of the expression is 12.