29 - ( 6 + 2 ) x 3 + 5 =
2 - ( 28 + 12 ) : ( 15 + 5 ) =
70 - 35 x ( 7 - 5 ) =
9 - ( 18 + 3 x 9 ) : 5 =
3 - ( 18 + 3 x 9 ) : ( 4 x 7 - 13 ) =
7 - ( 6 + 6 x 6 ) : 6 =
90 - 9 x ( 7 + 3 ) =
35 - ( 11 - 4 ) x ( 45 : 9 ) =
5 - 35 : ( 12 - 5 )