Challenge 1

What students worked out9
Student 1
30
Student 1
Sorry wrong answer it is 13
Student 2
13
Student 5
13
Student 5
I checked again I think it is 11
Student 3
4,5,6,7,8,9,10,11,12,13,14,16,18
total 13
Student 6
4
5
6
7
8
9
10
11
12
13
14
16
18Total 13
Student 8
13
Student 4
13 ways are possible.