Across
1
Number that divides evenly into another
4
Total distance around a shape
7
Sum divided by count
8
Space between two intersecting lines
10
Result of addition
11
Collection of distinct elements
13
Reference line in a graph
Down
1
Mathematical rule or equation
2
Result of multiplication
3
Line crossing from corner to corner
5
Mathematical statement of equality
6
Result of raising a number to an exponent
9
System of ordered marks for measuring
12
Corner point of a polygon