Across
1
Number with digits after a point
4
Mathematical rule or equation
6
System of ordered marks for measuring
7
Number that divides evenly into another
8
Line touching circle at one point
Down
2
Number less than zero
3
Value that does not change
4
Part of a whole number
5
Symbol representing unknown value
9
Proven mathematical statement
10
Line crossing from corner to corner
11
Math using letters for unknown values