2-1=
6+2=
8+8=
6-5+4=
8+5=
10-1=
6+7=
7+0-2=
14-3=
7+8=
16-3=
8+2+3=
9+8=
15-5=
9+5=
6+8-4=
8+=17 9+=16 7+=16 9+=12 6+=15
8+=13 9+=11 6+=14 7+=14 9+=15