Across
1
System of ordered marks for measuring
4
Value that does not change
5
Number that divides evenly into another
7
Number less than zero
10
Divisible by two
12
Parts per hundred
Down
2
Symbol representing unknown value
3
Distance from center to edge of circle
6
Amount of space an object occupies
8
Part of a whole number
9
Proven mathematical statement
11
Round shape with all points equidistant