Question

黄冈小状元六年级下册数学达标卷分类专项（1）答案

估算
4.92×1.08≈
6285÷7≈
412×297≈
8132÷91≈

按要求完成下面各题
（1）将下面各数分解质因数
36 78 90
（2）求下列各组数的最大公因数和最小公倍数
56和72 8和9

一块长84m、宽56m的长方形地，要把这块长方形地划分成面积相等的正方形地，不许有剩余，每块正方形地的边长最长应是多少米？可以划分成几块这样的正方形地？（要有过程）

（1＋1/2＋1/3＋1/4）×（1/2＋1/3+1/4+1/5）-（1+1/2+1/3+1/4+1/5）×（1/2+1/3+1/4）

Answer 1

估算：5 ，900，120000，90
二、（1）36=2 ×2×3×3
78=2×3×13
90=3×3×2×5
（2）最大公因数8 最小公倍数504；
最大公因数1 最小公倍数72；
三、（84，56）=28 最长的边长为28米
56/28×（84/28）=6（块）
四、=（1＋1/2＋1/3＋1/4）×（1/2＋1/3+1/4）+（1＋1/2＋1/3＋1/4）×1/5-（1+1/2+1/3+1/4）×（1/2+1/3+1/4）-1/5×（1/2+1/3+1/4）
=1/5
是不是老师布置的家庭作业呀？

Answer 2

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