【题目】森林医生。(判断对错,并将错的改正过来)
(1)50.4×1.9-1.8
=50.4×0.1
=5.04( )改正:
(2)3.75×0.25+25.8
=0.9776+25.8
=26.7776( )改正:
【答案】(1)×
改正:50.4×1.9-1.8
=95.76﹣1.8
=93.96
(2)×
改正:3.75×0.25+25.8
=0.9375+25.8
=26.7375
【解析】
略
【题目】森林医生。(判断对错,并将错的改正过来)
(1)50.4×1.9-1.8
=50.4×0.1
=5.04( )改正:
(2)3.75×0.25+25.8
=0.9776+25.8
=26.7776( )改正:
【答案】(1)×
改正:50.4×1.9-1.8
=95.76﹣1.8
=93.96
(2)×
改正:3.75×0.25+25.8
=0.9375+25.8
=26.7375
【解析】
略