Across
1
Rectangular array of numbers
3
Line segment connecting two circle points
6
Line touching circle at one point
7
Part of a whole number
9
Repeated addition
10
Number less than zero
Down
2
Reference line in a graph
3
Round shape with all points equidistant
4
Number with digits after a point
5
Comparison of two quantities
8
Result of raising a number to an exponent
11
Result of multiplication
12
Total distance around a shape
13
Proven mathematical statement