Problem
First name
Scott and Thomas Brosnahan Brown
School
Woolston Community Primary school
Country
Age
10
First we finished Six ten total challenge and the only way to get 84 was 4 x 6 and 6 x 10.After that we made up our own challenge of trying to find 84.We had to manipulate the grid and the numbers.After trying but not succeeding we finally found it we had to have a 7 by 2 grid with 7 elevens and 7 ones which gave us 84.