有一块棉布长3米,正好可以做4件同样大小的儿童睡衣.每件儿童睡衣会用掉这块布的几分之几?每件儿童睡衣用布多少米?
问题描述:
有一块棉布长3米,正好可以做4件同样大小的儿童睡衣.每件儿童睡衣会用掉这块布的几分之几?每件儿童睡衣用布多少米?
答
①1÷4=
;1 4
答:每件儿童睡衣会用掉这块布的
.1 4
②3÷4=
(米);3 4
答:每件儿童睡衣用布
米.3 4