[(1.8-0.6)÷□+2.5]×0.4=3.4□中填_.
问题描述:
[(1.8-0.6)÷□+2.5]×0.4=3.4□中填______.
答
1.2÷□+2.5=3.4÷0.4, 1.2÷□+2.5=8.5, 1.2÷□=8.5-2.5, 1.2÷□=6,□=1.2÷6,□...
[(1.8-0.6)÷□+2.5]×0.4=3.4□中填______.
1.2÷□+2.5=3.4÷0.4, 1.2÷□+2.5=8.5, 1.2÷□=8.5-2.5, 1.2÷□=6,□=1.2÷6,□...