1+8=
9
19-12=
7
258-154=
104
18+24-12=
32
5-2=
54+15=
69
184+166=
350
158-19+2=
141
7+6=
13
15-10=
5
548-123=
425
35+8-22=
21
9-8=
1
45-21=
24
541+194=
735
15+487-243=
259
9+9=
18
84-29=
55
154-124=
30
584-295+142=
431