六年级上册人教版练习册数学广角第四题的第1小题咋做?
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人气：319 ℃ 时间：2019-12-01 13:02:38
解答
设他答对了X题,则答错了（8-X）题.
10X-6（8-X）=64
10X+6X =64+48
16x=112
X=112÷16
x=7 8-7=1（题）
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