计算绝对值|-1|+ |-2|+ |-3|+ |-4|+ |+ 5|+ |+ 6|+ |+ 7|+ |+ 8|
问题描述:
计算绝对值|-1|+ |-2|+ |-3|+ |-4|+ |+ 5|+ |+ 6|+ |+ 7|+ |+ 8|
答
|-1|+ |-2|+ |-3|+ |-4|+ |+ 5|+ |+ 6|+ |+ 7|+ |+ 8|
=1+2+3+4+5+6+7+8
=(1+8)*4
=36