Across
1
Three-sided polygon
5
Number divisible only by 1 and itself
6
Symbol representing unknown value
7
Result of addition
8
Visual representation of data
Down
2
Repeated addition
3
Value that does not change
4
Mathematical rule or equation
7
System of ordered marks for measuring
9
Mathematical statement of equality
10
U-shaped curve of a quadratic function
11
Rectangular array of numbers