( 2 * 2) - ( 2 : 2) = 4 - 1 = 3
( 2 * 2 - 2 ) : 2 = ( 4 - 2 ) : 2 = 2 : 2 = 1
2 * ( 2 - 2 ) : 2 = 2 * 0 : 2 = 0
2 * ( 2 - 2 : 2 ) = 2 * ( 2 - 1 ) = 2 * 1 = 2
( 2 * 2) - ( 2 : 2) = 4 - 1 = 3
( 2 * 2 - 2 ) : 2 = ( 4 - 2 ) : 2 = 2 : 2 = 1
2 * ( 2 - 2 ) : 2 = 2 * 0 : 2 = 0
2 * ( 2 - 2 : 2 ) = 2 * ( 2 - 1 ) = 2 * 1 = 2