8 + 3 =
11
4 - 2 =
2
5 + 4 =
9
8 - 4 =
4
14 + 2 =
16
14 - 2 =
12
6 + 3 =
15 - 2 =
13
5 + 13 =
18
7 - 3 =
Press F11 Select menu option View > Enter Fullscreen for full-screen mode