Across
1
Repeated addition
5
Number less than zero
6
Value that does not change
7
Space between two intersecting lines
9
Mathematical statement of equality
10
Symbol representing unknown value
Down
2
Result of raising a number to an exponent
3
Proven mathematical statement
4
Number greater than zero
8
Rectangular array of numbers
10
Corner point of a polygon
11
Reference line in a graph
12
Line crossing from corner to corner
13
Total distance around a shape