横向
1
Number divisible only by 1 and itself
3
Parts per hundred
4
Line crossing from corner to corner
5
Number that divides evenly into another
6
Exact correspondence on both sides
7
Three-sided polygon
纵向
2
Math using letters for unknown values
3
Total distance around a shape
6
Collection of distinct elements
8
Divisible by two
9
Reference line in a graph
10
Number greater than zero
11
System of ordered marks for measuring
12
Distance from center to edge of circle