Across
1
System of ordered marks for measuring
2
Part of a whole number
3
Reference line in a graph
6
Proven mathematical statement
7
Collection of distinct elements
8
Rectangular array of numbers
10
Divisible by two
Down
2
Mathematical rule or equation
3
Space between two intersecting lines
4
Value that does not change
5
Result of addition
9
Round shape with all points equidistant