Across
1
Result of multiplication
5
Parts per hundred
6
System of ordered marks for measuring
7
Reference line in a graph
8
Closed shape with straight sides
10
Value that does not change
11
Repeated addition
12
Part of a line with two endpoints
Down
2
Number with digits after a point
3
Part of a whole number
4
Power to which a number is raised
9
Symbol representing unknown value
13
Mathematical statement of equality