早教吧 育儿知识 作业答案 考试题库 百科 知识分享

5/4X5/4X1/4X1/4X4/5X4/5X4X4的答案(简便运算)急!

题目详情
5/4X5/4X1/4X1/4X4/5X4/5X4X4的答案(简便运算)急!
▼优质解答
答案和解析
5/4X5/4X1/4X1/4X4/5X4/5X4X4
=(5/4X4/5)X(5/4X4/5)X(1/4X4)X(1/4X4)
=1X1X1X1
=1