Multiplication
2x8
16
I'm thinking of a shape with no sides...
Circle
8 divided by 2
4
1+1
2
5x11
55
I'm thinking of a shape that's a parallelogram, all 4 sides are the same, 4 right angles, and isn't slanted
Square
9 divided by 3
3
12+28
40
12x3
36
This shape has 4 sides, parallelogram, and is slanted
Rhombus
28 divided by 4
7
34+32
66
81
This shape has 6 sides, is a polygon, and can be known as a 6-gons
Hexagon
54 divided by 9
6
120+2340
2460
12x13
156
a polygon, a closed two-dimensional shape with straight sides, that has ten sides, ten interior angles, and ten vertices.
decagon
146 divided by 2
73
1234+123456
124690