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)
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)
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The more I
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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?