Addition
20+25
45
45-2
43
how many sides does a triangle have
3
6 x 3
18
55+7
62
34-5
29
how many sides does a square have
4
7 x 2
14
69+5
74
300-7
293
how many sides does an octagon have
8
60 x 2
120
48+8
56
560-55
505
how many sides does a hexagon have
6
4 x 3
12
256+44
300
498-94
404
How many sides does a pentagon have
5
40 x 3
120