18+1=
13 - 2=
20-16=
40+13=
30-22=
30-19=
80-52=
40+55=
70+14=
50-47=
24+24=
96-75=
62+13=
89-55=
98-41=
51+35=
70-48=
38+15=
81-63=
26+39=