475,805 rounded to the nearest ten thousand would be 476,000.
 
        
             
        
        
        
Yes you do! In fact not just I. You move al l three down right after or before you move the units to the right.
        
                    
             
        
        
        
.21 is decimal form, 21/100 is the fraction in simplest form.
        
                    
             
        
        
        
In algebraic terms this is:

The integer is 2.