2.1×1.1×0.54÷(5.4×1.21÷5/21)=_.
问题描述:
2.1×1.1×0.54÷(5.4×1.21÷
)=______. 5 21
答
2.1×1.1×0.54÷(5.4×1.21÷
),5 21
=2.1×1.1×0.54÷5.4÷1.21×
,5 21
=(2.1×
)×(1.1÷1.21)×(0.54÷5.4),5 21
=0.5×
×0.1,10 11
=
×1 2
×10 11
,1 10
=
.1 22
故答案为:
.1 22