-(-19)+(-27)-(-3)-(+23)-(+99) 要简便计算的

问题描述:

-(-19)+(-27)-(-3)-(+23)-(+99) 要简便计算的

-(-19)+(-27)-(-3)-(+23)-(+99)
=19-27+3-23-99
=19+3-(27+23)-(100-1)
=22-50-100+1
=-127