列式计算.(8%)
(1)0.4除1.84的商,加上两个0.5的积,和是多少?
(2)13.6比一个数的2倍多0.4,求这个数.
(1)1.84÷0.4+0.5×0.5
=4.6+0.25,
=4.85;
(2)(13.6-0.4)÷2
=13.2÷2,
=6.6.
列式计算.(8%)
(1)0.4除1.84的商,加上两个0.5的积,和是多少?
(2)13.6比一个数的2倍多0.4,求这个数.
(1)1.84÷0.4+0.5×0.5
=4.6+0.25,
=4.85;
(2)(13.6-0.4)÷2
=13.2÷2,
=6.6.