《整理与复习》第2课时复习练习题及答案
http://t.cn/Ri466E4第2课时 复习(2) 不夯实基础,难建成高楼。1.(1)×( )=×( )=( )×0.3=1(2)比的前项是3,比值是24,比的后项是( )。(3)走一段900米长的路,小军用15分钟,小伟用20分钟,小军和小伟所用时间的比是( ),速度的比是( )。(4)有20吨货物,第一次运走它的,第二次运走吨,两次共运走( )吨,还剩( )吨。2.化简下面各比,并求出比值。比最简整数比比值比最简整数比比值75∶1001.25∶2∶∶0.13.6∶0.83.6∶13.一种药水是由药粉和水按1∶100的比配制而成的。要配制这种药水4040千克,...
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