Across
1
Split into equal parts
5
Sum divided by count
6
Comparison of two quantities
7
Value that does not change
8
Three-sided polygon
11
Round shape with all points equidistant
Down
2
Number divisible only by 1 and itself
3
Result of raising a number to an exponent
4
Single numeral from 0 to 9
9
Distance from center to edge of circle
10
Mathematical statement of equality
12
Mathematical rule or equation
13
Divisible by two