Across
1
Number with digits after a point
4
Number that divides evenly into another
5
Three-sided polygon
6
Rectangular array of numbers
7
Result of raising a number to an exponent
10
Proven mathematical statement
Down
2
Parts per hundred
3
Part of a circle's circumference
4
Part of a whole number
8
Difference between highest and lowest values
9
Steepness of a line
11
Number divisible only by 1 and itself