85 - 60 :5 +35=
57-57:3+24=
( 28 +36 ) : 4 +26 -19 =
600 : 3 + 120 *6=
16*4 - 4 * 12 =
320 * 2 - 400=

(90-18) :8+27=
17*3+2:15 =
60-60:4 =
(68+2):7-21+33=
(56+32):8+900:9=
60:(3+2)*6=