3.25+(-2.6)+5.75+(8-2/5)
问题描述:
3.25+(-2.6)+5.75+(8-2/5)
答
3.25+(-2.6)+5.75+(8-2/5)
=3.25-2.6+5.75+8-0.4
=3.25+5.75+8-(2.6+0.4)
=17-3
=14