判断对错
50.302=5.0302
(
41.380=41.38
小数就是比1小的数.
十二点零零八写作12.08.
10
30.705
小数最大的计数单位是0.1.
48×25
=(40+8)×25
=40×25+8×25
=1200
( )
=493
=383
25×17×4×2
=(25×4)+(17×2)
=100+34
=134