在横线里填上“＞”或“＜”．
0.25×0.380.38     4.75÷0.954.75    7.2×8.47.2        3.48÷2.53.48．

直接写出得数．

4.5+2.7=	0.21×4=	210÷0.7=	3.9×2÷3.9×2=
2.5×8=	4.5÷0.5=	10-0.42=	0.62÷0.62-1=

怎样算简便就怎样算．

6.71×0.52+4.8×0.671	2.5×（3.5-1.65）×0.4	102×4.5
6.25÷1.25÷0.8	8.3-2.63+2.73×1.5．