4.8÷24=
1.4÷70%=
×8=
(+)×30=
6.9+7=
×6.3=
49.01÷7≈
=
家电城今天销售了90台冰箱,____,彩电销售了多少台?
7.53﹣2.5= 45+215= ×63=
﹣= 24÷= +÷=