直接写得数
1÷0.01= 100×0.4%= ÷÷6= 12÷(+)=
÷10%= 8﹣8÷9= 6﹣+= (+﹣)×30=
×= 1÷0.1×1÷0.1= ÷×6= ﹣×=
直接写得数
1÷0.01= 100×0.4%= ÷÷6= 12÷(+)=
÷10%= 8﹣8÷9= 6﹣+= (+﹣)×30=
×= 1÷0.1×1÷0.1= ÷×6= ﹣×=