121+232+343+454+565+676+787+898
问题描述:
121+232+343+454+565+676+787+898
答
121+232+343+454+565+676+787+898
=(121+898)+(232+787)+(343+676)+(454+565)
=1019+1019+1019+1019
=1019×4
=4076