31×69=	4148÷32=	0.102×99=	5492÷19=	88.4+11.8=
25π=	4.9×8.1=	2.18+6.89=	143÷672=	103×59=
0.018×250=

在○里填上“＞”“＜”或“=”．

4.75÷0.9○4.75	0.98×1.01○1.01	7.48×0.5○7.48÷0.5	2.86×0.01 2.86÷0.01
87.3÷0.8○87.3	1×0.98○1	9.2÷1.2○9.2×1.2	3.6×0.99○3.6÷0.99．

(1)7.5×0＋1×7.5=

(2)(1.6＋0.4)×3.5=

(3)7.31×1－7.31=

(4)0.25×1.7×4=

(5)0.26＋0.73＋0.74=

(6)0.19×8.3＋1.7×0.19=

(1)7.5×0＋1×7.5=

(2)(1.6＋0.4)×3.5=

(3)7.31×1－7.31=

(4)0.25×1.7×4=

(5)0.26＋0.73＋0.74=

(6)0.19×8.3＋1.7×0.19=