80-40= 20+33= 37-25= 38+32=
13-6= 41+6= 90-40= 80-50+42=
93-3= 55+2= 7+20= 25+70-80=
7+42= 78-5= 14-7= 77-2-40=
10+58= 83-40= 33+20= 40+6+20=
个
76=42 248=16