Across
1
System of ordered marks for measuring
3
Number with digits after a point
4
Number greater than zero
7
Repeated addition
10
Space between two intersecting lines
Down
2
Longest side of a right triangle
3
Split into equal parts
4
Number divisible only by 1 and itself
5
Mathematical rule or equation
6
Part of a line with two endpoints
8
Closed shape with straight sides
9
Number less than zero
11
Number that divides evenly into another