作者:Andrew McCoy 14 年以前
 791
 
                    
                        Order Of Operations
                        
                        
                             
                            
                         
                     
                 
             
            
                
                    
                    Order Of Operations
Rules
5th. Finally, Addition and Subtraction from left to right/or which ever comes first.
4th. Multiply and Divide from left to right/or which ever comes first.
3rd. Exponenets must be done next.
2nd. Calculations in parenthesis must be done first. When you have more than one, do the inner parenthesis or brackets first.
1rst. Calculations must be done from left to right
PEMDAS
Subtraction
2-2
Addition
2+2
Division
4/2
Multiplication
2x2
Exponents
2^2
Parentheses
(2+2)