直接写得数÷2.25= ÷9.875= ×= 9.8÷=﹣÷= +÷+= (9×0.25)×(4×9)= 0÷+=
用小数计算下面各题.5米80厘米+4米15厘米 6吨500千克﹣650千克+= ﹣= +=
心灵脑快.6.3÷0.9= 0.006×100= 2004﹣299= 11﹣= 26×0.25×4=7×÷7×= 5÷7+5= 31×197≈ 0.56×=
直接写得数3.6÷0.6= 0.3×1.5= 7﹣0.35= 3л+7л=62+0.12= ﹣= 14×÷14×= 2.4×5=
口算:0.125×8= 9 ﹣9.875= 3.14×8= ﹣= 1+160%=0.36×1000= 2 ÷= 10﹣9.9= ﹣÷2= 7÷×0=
直接写出得数2.4×5= 250×0.02= 1﹣0.57= 12.5×16=0.24÷1.2= ﹣= ÷= +=÷0.8= = = == 178.5﹣36.5﹣63.5=