According to the order of operations, expressions inside parentheses are evaluated first, while addition and subtraction are evaluated last. For the given expression, this means evaluating the expressions inside the brackets completely before adding the products.
(2* 100)+(7* 10)
For this, we must remember to evaluate the multiplication first, then the sum of their results.
Operation
Before Simplification
After Simplification
Multiply
( 2* 100)+( 7* 10)
( 200)+( 70)
Add terms
( 200)+( 70)
270
The expression equals 270.
Alternative Solution
Using a Calculator
We can also evaluate this expression using a calculator. To do so, type it as shown below.
