85.

Using 4 fours and arithmetic operations write from 1 to 10



3 = ( 4 + 4 + 4 ) / 4



4 = ( 4 - 4 ) * 4 + 4



5 = ( 4 * 4 + 4 ) / 4



6 = 4 + ( 4 + 4 )/4 // 4 + 2



7 = ( 4 + 4 ) - ( 4 / 4 )



8 = ( 4 + 4 ) * ( 4 / 4 )



9 = ( 4 + 4 ) + ( 4 / 4 )



10 = ( 44 - 4 ) / 4