(-2.75)+(-4.25)+(-3.375)+0.625=?_数学解答

(-2.75)+(-4.25)+(-3.375)+0.625=?

人气：438 ℃　时间：2020-03-24 20:22:58

解答

(-2.75)+(-4.25)+(-3.375)+0.625
= -（2.75+4.25+2.375）+0.625
= -9.375+0.625
= -8.75