13-6= 18-9= 11-7= 6+9= ( )+5=12 17-9= 13-6= 14-5 = 15-6= 18-( )=9 12-9= 12+8= 11-9= 4+8= 5+( )=14 16-4= 7+9= 16-7= 2+17= 11-( )=5 12-8= 17-8= 18-1= 17-8= 17-15-7= 10-4 = 14+6 = 16-9= 14+
( ( =10 =18 ))15+5= 16-8= 14-7 = 12+8 = ( )+8=12 8+6= 14-10 = 8+8= 14-9= ( )-12=3 7+5= 14-4= 11+9 = 11-6= ( )-8=8 17+1 = 15-8= 16+3= 5+8= ( )+5=18 9+2= 815-9= 14
+4= 7-8= 12+5= 6-7= 11+6= 5-6= 13+6= -5= 9+4= 7+8= 7+7= 6+5= 5+7= 12-9= 16-8= 15-7= 14-6= 11-5= 9+6= 8+8= 7+6= 6+8= 5+8= 16-9= 11-8= 13-7= 15-6= 12-5=
9+8= 513-9= 13
+8= 7-8= 14+4= 6-7= 12+9= 5-6= 14+9= -5= 9+3= 9+8= 7+8= 6+7= 4+9= 11-9= 12-8= 16-7= 13-6= 15-5= 14-9= 15-8= 17-10= 12-3= 11-4= 11-3= 12-4= 13-4= 11-2= 14-10= 4+8= 514-6= 12
+7= 2-5= 11+9= 7-5= 13+5= 8-8 15+6= -6= 7+7= 9+9= 9+6= 8+5= 8+9= 11-5= 12-6= 14-9= 16-9= 15-8= 4+7= 6+6= 8+8= 9+3= 7+7= 14-8= 15-6= 16-9= 17-8= 18-9= 9+9= 717-10= 16-1= 16-2= 16-3= 16-4=
+5= 8+6= 5+9= 13-8=