Across
1
Mathematical statement of equality
3
Result of addition
5
Corner point of a polygon
6
Single numeral from 0 to 9
7
Reference line in a graph
9
Distance from center to edge of circle
Down
2
Collection of distinct elements
3
System of ordered marks for measuring
4
Result of raising a number to an exponent
6
Line crossing from corner to corner
8
Difference between highest and lowest values