4+3=
7
9-2=
2x3=
6
2+1+2=
5
15+2=
17
20-4=
16
10x6=
60
4+6+5=
15
42+6=
48
58-4=
54
5x7=
35
8+7+2=
29+5=
34
71-4=
67
4x4=
6+9+1=
48+25=
73
43-33=
10
27
3+3+3+3+3=
Press F11 Select menu option View > Enter Fullscreen for full-screen mode