Across
1
Line crossing from corner to corner
3
Result of addition
4
Distance from center to edge of circle
8
Rectangular array of numbers
10
Corner point of a polygon
11
Visual representation of data
12
Number with digits after a point
13
Number greater than zero
Down
2
Repeated addition
3
System of ordered marks for measuring
5
Result of multiplication
6
Result of raising a number to an exponent
7
Math using letters for unknown values
9
Sum divided by count