问题
解答题
比较每组中两个数的大小. 0.5和
|
答案
(1)因为
=0.51,51 100
=0.039,39 1000
且0.5<0.51,0.039<0.39,
所以0.5<
,51 100
<0.39.39 1000
(2)因为4
=4.9,19 10
=1.83,83 100
且4.89<4.9,1.83>1.8,
所以4.89<4
,19 10
>1.8.83 100
比较每组中两个数的大小. 0.5和
|
(1)因为
=0.51,51 100
=0.039,39 1000
且0.5<0.51,0.039<0.39,
所以0.5<
,51 100
<0.39.39 1000
(2)因为4
=4.9,19 10
=1.83,83 100
且4.89<4.9,1.83>1.8,
所以4.89<4
,19 10
>1.8.83 100