4.8xO.25简便算法怎么算?
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4.8xO.25简便算法怎么算?
4.8xO.25简便算法怎么算?
4.8xO.25简便算法怎么算?
(4+0.8)×0.25
=4×0.25+0.8×0.25
=1+0.2
=1.2
4.8xO.25简便算法怎么算?
4.8xO.25简便算法怎么算?
4.8xO.25简便算法怎么算?
(4+0.8)×0.25
=4×0.25+0.8×0.25
=1+0.2
=1.2