7.7/1.54+1.54/0.7简便方法计算

来源：学生作业帮助网编辑：作业帮时间：2024/05/06 17:56:36

7.7/1.54+1.54/0.7简便方法计算
7.7/1.54+1.54/0.7简便方法计算

7.7/1.54+1.54/0.7简便方法计算
7.7/1.54+1.54/0.7
=7.7/(0.2×7.7)+(2.2×0.7)/0.7
=1/0.2+2.2
=5+2.2
=7.2