Solution

152772

First name
Maruthi, Madeline
School
West Lodge Primary
Country
Age
11

We think the solution is that there are 8 possible ways to make a proper dice train.

For the cube six, we found three ways: three twos, six ones and two threes.
For the cube five, we found one way: five ones.
For the cube four, we found two solutions: two twos and four ones.
For the cube three, we found one way: three ones.
For the cube two, we found one way: two ones.