=(1.25×8)×(4×25) =10×100 =1000
=15.8÷(4×0.25)+1.75 =15.8÷1+1.75 =17.55
=0.84×(101-1) =0.84×100 =84
=4.67-0.67-2.98 =4-2.98 =1.02
=0.36×100-0.36 =36-0.36 =35.64
=(4.06+5.94)+(3.9+6.1) =10+10 =20
480÷(210÷3.5)=8(小时) 答:这辆汽车行驶480千米需要8小时。
(66.8-2.8)÷3.2+1=21(层) 答:这幢楼一共有21层。
|
|