( 2) +(9 )=( 3) +(8 )=(4 ) +(7 )=(5 ) +( 6)
Just add the ends together. Because every number is 1, just add the largest and smallest. After 2 plus 9,
The remaining 3 4 5 6 7 8
Up to three eights.
The remaining 4 5 6 7
Up to four sevens.
The remaining 56
Then even the best answer!