横向
1
Number divisible only by 1 and itself
4
Round shape with all points equidistant
5
Line segment connecting two circle points
6
Math using letters for unknown values
7
Line crossing from corner to corner
8
Single numeral from 0 to 9
纵向
1
Lines that never intersect
2
Amount of space an object occupies
3
Number that divides evenly into another
6
Sum divided by count
9
Split into equal parts