横向
1
Value that does not change
6
Split into equal parts
7
Distance from center to edge of circle
8
Math using letters for unknown values
9
Result of multiplication
纵向
2
Reference line in a graph
3
Repeated addition
4
Amount of space an object occupies
5
Line crossing from corner to corner
10
Proven mathematical statement
11
Mathematical rule or equation
12
Three-sided polygon
13
Longest side of a right triangle