Complete the equations.
28{,}770\div 10^2 =28,770÷10 
2
 =28, comma, 770, divided by, 10, squared, equals 
28{,}770\div 10^3 =28,770÷10 
3
 =28, comma, 770, divided by, 10, cubed, equals 
28{,}770\div 10^4 =28,770÷10 
4
 =28, comma, 770, divided by, 10, start superscript, 4, end superscript, equals