Across
1
Closed shape with straight sides
2
Parts per hundred
4
Number with digits after a point
5
Total distance around a shape
6
U-shaped curve of a quadratic function
9
Line segment connecting two circle points
10
Symbol representing unknown value
Down
1
Number divisible only by 1 and itself
2
Result of multiplication
3
Line crossing from corner to corner
7
Difference between highest and lowest values
8
Mathematical rule or equation