Order of operation is fundamental, it helps display the order of how extensive operations or equations should be preformed. If cannot grasp this concept it would be hard to move forward.
In Algebra there is a specific order in which operations are performed when evaluating an expression or solving equations.
This is the algebraic order of operation:
1. Do any work within parentheses () or other grouping symbols [] first.
2. Do any work with exponents (powers) or roots.
3. Do any multiplication or division in order from left to right.
4. Do any addition and subtraction in order from left to right.
This acronym for this order of operation is PEMDAS
A popular expression for remembering this is:
Sample A
4^2+(9-3)=?
4^2+6=?
16+6=?
22=?
Sample B
5^2-(4*3)+9/3*4=?
5^2-12+9/3*4=?
25-12+9/3*4=?
25-12+3*4=?
25-12+12=?
13+12=?
25=?
http://www.classroomzoom.com/lessons/183/pemdas-order-of-operations
