精品解析:2023年北京市中考数学真题(解析版)(1)
2023年北京市中考数学试卷考生须知1.本试卷共6页,共两部分,三道大题,28道小题.满分100分.考试时间120分钟.2.在试卷和草稿纸上准确填写姓名、准考证号、考场号和座位号.3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效.4在答题卡上,选择题、作图题用2B铅笔作答,其他试题用黑色字迹签字笔作答.5.考试结束,将本试卷、答题卡和草稿纸一并交回.第一部分选择题一、选择题(共16分,每题2分)第1—8题均有四个选项,符合题意的选项只有一个.1.截至2023年6月11日17时,全国冬小麦收获2.39亿亩,进度过七成半,将239000000用科学记数法表示应为()A.B.C.D.【答案】B...
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