Practice Test
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Pay close attention to the order of operations.
5
According to the order of operations, expressions inside parentheses are evaluated first, followed by exponents, then multiplication and division, and finally addition and subtraction are evaluated last. We can use the acronym PEMDAS to help us remember the correct order!
Consider the given expression.
| Operation | Before Simplification | After Simplification |
|---|---|---|
| Calculate power | 5+4(10)/3^2 | 5+4(10)/9 |
| Multiply | 5+ 4( 10)/9 | 5+ 40/9 |
| Add terms | 5+ 40/9 | 45/9 |
Finally, the fraction can be written as a division.
The expression is equal to 5.