横向
1
Mathematical rule or equation
5
Mathematical statement of equality
7
Result of raising a number to an exponent
8
Symbol representing unknown value
12
Proven mathematical statement
13
Line crossing from corner to corner
纵向
2
Closed shape with straight sides
3
Distance from center to edge of circle
4
Math using letters for unknown values
6
Result of addition
9
Rectangle with four equal sides
10
Line touching circle at one point
11
Number that divides evenly into another