7*8+12 =56+12=6832:4+6=8+6=1470-4*9=70-36=349*9-8*8=81-64=1748:6+3*9=8+27=3572:8-42:7=9-6=3100-5*9+38=100-45+38=930:18*25=035:5*7=7*7=49
7*8+12 =56+12=68
32:4+6=8+6=14
70-4*9=70-36=34
9*9-8*8=81-64=17
48:6+3*9=8+27=35
72:8-42:7=9-6=3
100-5*9+38=100-45+38=93
0:18*25=0
35:5*7=7*7=49