41+6=
28-2=
15+28=
35-28=
30-10=
23-7=
36-26=
7+37=
32-2=
24-17=
27-7=
17+22=
36-17=
48-9=
49+0=
43-2=
47+0=
43+1=
50-40=
32-23=
42-39=
25-14=
37-6=
47+0=
22-17=
35+3=
42-24=
38-7=
22-6=
26-7=
7+31=
34-13=
33-29=
41-3=
43+5=
39-28=
42+2=
12+34=
34-33=
18+8=
40-32=
25+24=
45-38=
49-25=
13+8=
39-25=
39+9=
35+15=
23+8=
6+25=