0.75*9+(8/9)+(3/4)*1+(1/9)-75%要简便的过程输错了,是0.75*9又(8/9)+(3/4)*1又(1/9)-75%

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0.75*9+(8/9)+(3/4)*1+(1/9)-75%要简便的过程输错了,是0.75*9又(8/9)+(3/4)*1又(1/9)-75%
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0.75*9+(8/9)+(3/4)*1+(1/9)-75%要简便的过程输错了,是0.75*9又(8/9)+(3/4)*1又(1/9)-75%
0.75*9+(8/9)+(3/4)*1+(1/9)-75%
要简便的过程
输错了,是0.75*9又(8/9)+(3/4)*1又(1/9)-75%

0.75*9+(8/9)+(3/4)*1+(1/9)-75%要简便的过程输错了,是0.75*9又(8/9)+(3/4)*1又(1/9)-75%
0.75*9+(8/9)+(3/4)*1+(1/9)-75%
=0.75*9+(8/9)+0.75+(1/9)-0.75
=0.75*(9+1-1)+(8/9+1/9)
=0.75*9+1
=7.75