早教吧 育儿知识 作业答案 考试题库 百科 知识分享

0.375×4又3/8-3/8+15.625×3.75%=

题目详情
0.375×4又3/8-3/8+15.625×3.75% =
▼优质解答
答案和解析
是0.375×4又3/8-3/8+15.625×37.5%
=0.375×4又3/8-0.375+15.625×0.375
=0.375×(4又3/8-1+15.625)
=0.375×19
=7.125