1又3/4*18.35-9又7/20*1.75+1/2*3.5怎么算?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 17:35:21
![1又3/4*18.35-9又7/20*1.75+1/2*3.5怎么算?](/uploads/image/z/1250098-34-8.jpg?t=1%E5%8F%883%2F4%2A18.35-9%E5%8F%887%2F20%2A1.75%2B1%2F2%2A3.5%E6%80%8E%E4%B9%88%E7%AE%97%3F)
1又3/4*18.35-9又7/20*1.75+1/2*3.5怎么算?
1又3/4*18.35-9又7/20*1.75+1/2*3.5怎么算?
1又3/4*18.35-9又7/20*1.75+1/2*3.5怎么算?
1又3/4*18.35-9又7/20*1.75+1/2*3.5
=7/4 * 18.35-9.35*7/4+7/4
=7/4×(18.35-9.35+1)
=1.75×10
=17.5