简便方法计算 7/2÷4+360×25%+0.25×36.5 (7.25×40%+2.75×2/5)÷20%
简便方法计算 7/2÷4+360×25%+0.25×36.5 (7.25×40%+2.75×2/5)÷20%
【1.9+19%×(4.8-19/5)】÷(29/10-190%)
【1.9+19%×(4.8-19/5)】÷(29/10-190%)
数学人气:304 ℃时间:2020-03-27 03:00:13
优质解答
7/2÷4+360×25%+0.25×36.5 =7/2×1/4+360×1/4+1/4×36.5 =(7/2+360+36.5)×1/4=400×1/4 =100(7.25×40%+2.75×2/5)÷20%=(7.25×40%+2.75××40%)×5=(7.25+2.75)×40%×5=10×40%×5=20【1.9+19%...
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