横向
1
Divisible by two
2
Number divisible only by 1 and itself
3
Result of addition
4
Number that divides evenly into another
6
Part of a circle's circumference
8
Math using letters for unknown values
10
Mathematical statement of equality
纵向
2
Lines that never intersect
3
System of ordered marks for measuring
5
Distance from center to edge of circle
7
Value that does not change
9
Space between two intersecting lines