Across
1
Sum divided by count
6
Repeated addition
7
System of ordered marks for measuring
8
Single numeral from 0 to 9
9
Number with digits after a point
11
Line segment connecting two circle points
14
Mathematical statement of equality
Down
2
Mathematical rule or equation
3
Collection of distinct elements
4
Value that does not change
5
Total distance around a shape
10
Line touching circle at one point
12
Divisible by two
13
Result of raising a number to an exponent