早教吧 育儿知识 作业答案 考试题库 百科 知识分享

1.2345+2.3451+3.4512+4.5123+5.1234怎计算

题目详情
1.2345+2.3451+3.4512+4.5123+5.1234怎计算
▼优质解答
答案和解析
1.2345+2.3451+3.4512+4.5123+5.1234
= (1+2+3+4+5) × 1.1111
= 15 × 1.1111
= 15 + 1.5 + 0.15 + 0.015 + 0.0015
= 16.6665