2+1=
3
3+2=
5
7+1=
8
4+2=
6
3+3=
6
6-3=
3
7+2=
9
10-9=
1
0+1=
1
2+2=
4
2+2 =
4
4-2=
2
4-2=
2
3+3=
6
7-4=
3
5-1=
4
3+2=
5
3+4=
7
5+3=
8
5+5=
10
5-4=
1