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%)

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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%)简便方法计算7/2÷4+360

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%)
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%)

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%)
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%×(4.8-19/5)】÷(29/10-190%)
=【1.9+19%×(24/5-19/5)】÷(29/10-19/10)
=【1.9+19%×(5/5)】÷(10/10)
=【1.9+0.19】÷1
=2.09