69-4 14+38 5+714 17-418-5
8-45 0+65 129+3 6+717-3
9+4= 5-3= 4+6= 10-7=
12+5= 18-9= 11-6= 8+7=
7+8+4= 14-7+9= 16-9-5= 4+3-7=
9+8=( )
14+( )=19