Across
1
Difference between highest and lowest values
4
Steepness of a line
5
Comparison of two quantities
6
System of ordered marks for measuring
7
Result of raising a number to an exponent
Down
2
Symbol representing unknown value
3
Number less than zero
4
Exact correspondence on both sides
8
Round shape with all points equidistant
9
Result of multiplication
10
Rectangle with four equal sides