简便运算:5-[4.6-2.4*(4.75-3.25)]

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简便运算:5-[4.6-2.4*(4.75-3.25)]

简便运算:5-[4.6-2.4*(4.75-3.25)]
简便运算:5-[4.6-2.4*(4.75-3.25)]

简便运算:5-[4.6-2.4*(4.75-3.25)]
5-[4.6-2.4*(4.75-3.25)]
=5-4.6+2.4*(4.75-3.25)]
=0.4+2.4*1.5
=0.4+0.4*6*1.5
=0.4*(1+6*1.5)
=0.4*(1+9)
=4