---
tags:
  - Mathematics
  - Prealgebra
---

1. Evaluate expressions in **parentheses**
1. Evaluate **exponents** 
1. Evaluate **multiplications and divisions** from left to right in the order that they appear
1. Evaluate **additions and subtractions** from left to right in the order that they appear.

In the absence of grouping symbols, addition holds no precedence over subtraction and vice versa.

````
15 - 8 + 4 = 7 + 4
					= 11
````

````
15 - 8 + 4 = 15 - 12 
					 = 3
````