Across
1
Part of a whole number
4
Number divisible only by 1 and itself
5
Result of multiplication
6
System of ordered marks for measuring
7
Rectangular array of numbers
8
Number with digits after a point
11
The number representing nothing
13
Repeated addition
Down
2
Line touching circle at one point
3
Round shape with all points equidistant
4
Parts per hundred
9
Reference line in a graph
10
Exact correspondence on both sides
12
Comparison of two quantities