Across
1
Comparison of two quantities
3
Number with digits after a point
5
Line touching circle at one point
6
Number less than zero
8
Space between two intersecting lines
10
Value that does not change
Down
2
Collection of distinct elements
3
Line crossing from corner to corner
4
Math using letters for unknown values
7
Single numeral from 0 to 9
9
Divisible by two