In Year 6, we tackled a tricky ‘Number Sandwiches’ investigation! 

We started on Number Sandwich 3, in which we had to arrange the numbers 1 – 3 in number sandwiches. The numbers had to have an amount of numbers between them that were equal to their value. For example, in between two 1’s there had to be one number and in between two 2’s there had to be two numbers!

We found that the solution for Number Sandwich 3 was 312132.

After much perseverance, we discovered that Number Sandwiches 5 and 6 were impossible!

However, Number Sandwiches 4 and 7 can be done – can you find the solution?

If you can, please bring it in to show Mr Witcomb!