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某次考试共有20题,计分标准是:做对第k题得k分(k=1、2、3、4.20),小明做了所有的题,得100分,那

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某次考试共有20题,计分标准是:做对第k题得k分(k=1、2、3、4.20),小明做了所有的题,得100分,那
做错第k题要倒扣k分(k=1、2、3、4.20).小明做了所有的题,得100分,那么小明至多做错多少道题,至少做错多少道题?
某次考试共有20题,计分标准是:做对第k题得k分(k=1、2、3、4.20),小明做了所有的题,得100分,那
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某次的数学竞赛共有20道题,评分标准是:每做对一题得5分,每做错或不做一题扣3分,小明参加了这次数学竞赛,得了68分,那 某次数学竞赛,共有20道题,满分100分,评分标准是每做对1题得5分,做错1题扣两分,不答不给分. 某次考试共有一百道选择题,没做对一题得1.不做或做错一题扣一分,小李共得100分,那么他打错多少道 某次数学测验共有20道题,做对一题得8分,做错一题扣5分,不做得0分。某学生得100分,则该学生没做的题目有几道? 一次考试共有10道题,每题完全做对的得10分,做错的扣6分,做对一部分的得3分,小张同学做了全部题目,共得77分,问小张 某次数学竞赛共有20道选择题评分标准是每做对一题得5分每做错扣3分,不答题不给分.小明有2道题没有答,总得分是74分.问 思考题,怎样做?某次的数学竞赛共有20道题,评分标准是:每做对一题得5分,每做错或不做一题扣3分,小明参加了这次数学竞赛 某次考试共20道题,做对一题得8分,做错一题扣5分,不做得0分,如果小张此次考试得了13分,则小张没有做的题有_____ 某次数学竞赛,共有20道题,满分100分评分标准是每做对1题得5分,做错1题扣2分 某学生有一道没答 某次竞赛共有20道题,每一题答对得5分,答错或不答都扣1分.小华参加了竞赛,得64分,小华做对几道题? 某次数学竞赛共20道题,做对1题得8分,做错1题倒扣5分,不做得0分,刘海晨同学得100分,该同学没做的题目有 ( )题 小芳参加六年级趣味数学竞赛,共有20道,每做对一题得5分,错一题得-2分,不做得0分.这次考试小红得了79分,她全做了.