来自吉培荣的问题
脱式计算.能简便的要简便运算.2.87×〔6.3-2.3〕54.7-45.3÷152.008×1999+2.00810.8÷〖〔5.28-1.68〕×0.3〗0.53.69÷〔1.23×0.5〕
脱式计算.能简便的要简便运算.
2.87×〔6.3-2.3〕
54.7-45.3÷15
2.008×1999+2.008
10.8÷〖〔5.28-1.68〕×0.3〗0.5
3.69÷〔1.23×0.5〕
1回答
2020-03-02 19:34