Across
1
Line crossing from corner to corner
5
Rectangular array of numbers
7
Closed shape with straight sides
8
Number that divides evenly into another
9
Line touching circle at one point
10
Number divisible only by 1 and itself
11
System of ordered marks for measuring
Down
2
Math using letters for unknown values
3
The number representing nothing
4
U-shaped curve of a quadratic function
6
Middle value in an ordered dataset
10
Result of raising a number to an exponent
12
Amount of space an object occupies
13
Result of multiplication