7.69*2.1+2.1*1.31+2.1怎样简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 20:44:11
7.69*2.1+2.1*1.31+2.1怎样简便计算
x)3323b-C=c0YC߳۟kxou nTOZ;* h↚PaC<;mGK

7.69*2.1+2.1*1.31+2.1怎样简便计算
7.69*2.1+2.1*1.31+2.1怎样简便计算

7.69*2.1+2.1*1.31+2.1怎样简便计算
7.69*2.1+2.1*1.31+2.1
=2.1*(7.69+1.31+1)
=21