(1)一根电线长5分之4米,用去3分之1米,还剩多少米?
4/5-1/3
=12/15-5/15
=7/15(米)
(2)一根电线长5分之4米,用去3分之1,还剩多少米?
4/5*(1-1/3)
=4/5*2/3
=8/15(米)
(1)一根电线长5分之4米,用去3分之1米,还剩多少米?(2)一根电线长5分之4米,用去3分之1,还剩多少米?
(1)一根电线长5分之4米,用去3分之1米,还剩多少米?(2)一根电线长5分之4米,用去3分之1,还剩多少米?
数学人气:290 ℃时间:2020-03-28 02:06:19
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