0.4 and 0.40 are equal. That zero on the hundredths place does not matter.
        
                    
             
        
        
        
427+316 
step one- add 400 and 300=700
step two- take 3 from the 16 and add it to the 27 and add - 27+3+13=43
step three- add 43 and 700
I think that the common core way just adds more steps and makes it more complicated than just adding it regularly, but that's just me.
        
                    
             
        
        
        
Answer:
10y + 6 hope this helps :)
Step-by-step explanation:
 
        
                    
             
        
        
        
The question is a blank black box...can you resend with actual picture...