Subtraction
4-2
2
8+2
10
1X3
3
I have 4 equal sides
square
6+3 and 6-3
9 and 3
10-5
5
30+10
40
2X4
8
I have 3 sides, what am I?
Triangle
15+5 and 15-5
20 and 10
20-12
8
100+83
3X5
15
I have no sides, what am I?
Circle
40+20 and 40-20
60 and 20
45-20
25
450+62
512
4X50
200
I 4 sides, but not all are equal, what am I?
Rectangle
32 and 16
150-60
90
137+63
200
30X5
150
I have 10 sides, what am I? Hint?
Star
172+54 and 172-54
226 and 118