6+7=
13
8-4=
4
4x1=
5+13=
18
16-9=
7
3x5=
15
23+10=
33
49-12=
61
7x6=
42
246+31=
277
127-13=
114
8x10=
80
262+119=
381
562-211=
351
9x9=
81