Divide
80\40
20
100-50
50
80+80
16
4/7+4/7
1 1/7
20x40
80
50\50
1
50-40
10
70+70
14
2/6x5/4
10/24
40x40
160
100\100
1
90-8
82
90+90
18
3/6x6/3
18/18
90x90
810
40\10
40
95-99
4
99+10
109
4/6x6/4
24/24 1
60x60
360
55\11
5
88-99
11
150+150
20
2/4x4/2
8/8 1
80x08
640