Across
1
Power to which a number is raised
5
Number with digits after a point
7
Difference between highest and lowest values
8
System of ordered marks for measuring
9
Result of multiplication
12
Collection of distinct elements
Down
2
Mathematical rule or equation
3
Three-sided polygon
4
Exact correspondence on both sides
6
Value that does not change
10
Result of raising a number to an exponent
11
Line crossing from corner to corner