72×209-1.8×73.6的简便计算

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/13 21:16:10

72×209-1.8×73.6的简便计算

72*2.09-1.8*73.6
=1.8*40*2.09-1.8*73.6
=1.8*(40*2.09-73.6)
=1.8*(83.6-73.6)
=1.8*10
=18
投我一票

72*2.09-1.8*73.6
=1.8*40*2.09-1.8*73.6
=1.8*(40*2.09-73.6)
=1.8*(83.6-73.6)
=1.8*10
=18

勇于改变的味道
回答的非常到位了。