白布有60米,白布长度比红布少1/5
问题描述:
白布有60米,白布长度比红布少1/5
答
参考例题:
只列算式或方程,不解答不计算 (1)花布长60米,是白布的4分之1,白布长多少米?
(2)花布长60米,白布比花布多4分之1,白布长多少米?
(3)花布长60米,比白布多4分之1,白布长多少米?
(4)花布长60米,白布比花布少4分之1,白布长多少米?
(5)花布长60米,比白布少4分之1,白布长多少米?
答案:
(1)花布长60米,是白布的4分之1,白布长多少米?
60÷1/4
(2)花布长60米,白布比花布多4分之1,白布长多少米?
60+60×1/4
(3)花布长60米,比白布多4分之1,白布长多少米?
60÷(1+1/4)
(4)花布长60米,白布比花布少4分之1,白布长多少米?
60-60×1/4
(5)花布长60米,比白布少4分之1,白布长多少米?
60÷(1-1/4)