直接写出得数.1.8÷3= 4.7+1.3= 9.36÷1.8= 0.8×0.5=1.25×0.8= 2.6÷0.2= 8.1÷0.03= 1×0.4=8.7÷0.3= 6.25×8= 1.01×0.9= 0.9÷0.01=
(1)361﹣99 (2)0.7+3.8+4.2+9.3 (3)×+×.
计算下面各题:①306﹣(206+78)②18.6×6+1.4×6③×9﹣7÷④÷〔1÷(﹣)〕⑤=⑥从5个的和里减去的倒数,差是多少?
(1)88﹣16×5+78 (2)2.4×1.5+4.5÷0.75(3)+÷ (4)÷[×(0.4+)].
计算下面各题:(1)2011+450÷15×30 (2)10÷× (3)÷6+× (4)÷[×(﹣)].
计算:2.5×75+25×2.4+2.5= .