4.几种常见的按比例分配问题的解法
4.几种常见的按比例分配问题的解法一、认真审题,填一填。(每空2分,共28分)1.小红帽到外婆家去,已走的路程和剩下的路程之比是2:3,小红帽已经走了全程的( ),还剩下全程的( )。2.在一个减法算式中,被减数、减数、差的和是322,减数与差的比是4:3,减数是( )。3.一个三角形的三个内角度数的比是2:5:11,这三个内角分别是()度、( )度和( )度。4.一个等腰三角形的周长是36厘米,一个腰与底边的长度比是5:2,这个三角形的底边是( )厘米。5.把400分成甲、乙、丙三份,甲数是120,乙、丙两数的比是2:5,乙数是( ),丙数是( )。6.甲数的与乙数的相...
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