5 + 5 =
8 - 5 =
3
4 + 4 =
8
10 + 4 =
14
10 - 2 =
6 + 6 =
12
15 + 3 =
15 - 5 =
10
8 + 8 =
16
12 + 13 =
25
12 - 4 =
10 + 10 =
14 + 15 =
29
10 - 7 =
12 + 12 =
24
Press F11 Select menu option View > Enter Fullscreen for full-screen mode