下面是一些同学在进行单位换算时出现的几种错误,你知道他们分别错在哪吗?请指出来,并改正过来（1）254mm=254×（1/1000)=0.254m(2)3.8m=3.8×100cm=380cm(3)6min=6min×60s=360s(4)6min=6min×60=360s

Question

下面是一些同学在进行单位换算时出现的几种错误,你知道他们分别错在哪吗?请指出来,并改正过来
（1）254mm=254×（1/1000)=0.254m
(2)3.8m=3.8×100cm=380cm
(3)6min=6min×60s=360s
(4)6min=6min×60=360s

Answer 1

(1)254mm=254×（1/1000) m=0.254m 丢单位
(2)3.8 m =3.8×100 cm=38cm 多乘个10
(3)6 min =6×60 s=360s 用2个单位乘
(4)6 min =6×60 s=360s 用错单位