Across
1
Symbol representing unknown value
5
Distance from center to edge of circle
7
Rectangle with four equal sides
8
Value that does not change
Down
2
Number with digits after a point
3
Result of raising a number to an exponent
4
Mathematical statement of equality
6
Result of addition
7
System of ordered marks for measuring
9
Part of a line with two endpoints
10
Math using letters for unknown values