Across
1
Number with digits after a point
5
Rectangle with four equal sides
6
Part of a whole number
8
Math using letters for unknown values
9
Space between two intersecting lines
10
Number less than zero
12
Number that divides evenly into another
14
Collection of distinct elements
Down
2
Three-sided polygon
3
Symbol representing unknown value
4
Lines that never intersect
7
Result of multiplication
11
Number divisible only by 1 and itself
13
Result of raising a number to an exponent