Solution

39613

First name
Mr M's Maths Group
School
Bearwood Primary School
Country
Age
9

http://nrich.maths.org/7506

We found 2 solutions to this problem.

We used trial and improvement to find solutions. Some of us didn't manage to find a solution, but we worked hard on changing the order of the cards.

Our two solutions were:

8, 7, 13, 10, 6, 12, 9

6, 9, 11, 12, 4, 14, 7

Oliver also spotted that the numbers in the third, fourth and the sixth positions were two digit numbers.

We also spotted that the sets of numbers in our solution have a difference of 2.

The total of both lines have a difference of 2.

We also spotted a pattern in odd and even numbers in our solutions.