Which group of four numbers, arranged in a square, has the largest total?
A  B  C  D  E  F  G  H  I  J  
1  2  2  2  1  4  2  5  5  4  5 
2  4  3  4  1  5  2  1  3  5  3 
3  2  5  4  5  1  4  5  4  5  2 
4  1  1  1  3  3  5  5  4  2  4 
5  1  4  5  3  2  2  1  4  5  1 
6  5  5  4  3  2  5  4  5  5  1 
Which group of four numbers, arranged in a square, has the smallest total?
Topics: Starter  Arithmetic  Mental Methods
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