Across
1
Sum divided by count
3
Number divisible only by 1 and itself
5
Result of addition
6
Symbol representing unknown value
7
Rectangular array of numbers
9
Result of raising a number to an exponent
10
Mathematical statement of equality
Down
2
Difference between highest and lowest values
3
Number greater than zero
4
Value that does not change
5
Steepness of a line
8
Total distance around a shape