加权平均数教学设计 哪种方式最合算教案
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8\u3001\u8981\u6df1\u5165\u94bb\u7814\uff0c\u521b\u9020\u6027\u7684\u8bbe\u8ba1\u6559\u5b66\u8fc7\u7a0b\u3002
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\u7b2c\u4e8c\u54682.1\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b\u7ec41\u8bfe\u65f62.2\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b\u7ec4\u7684\u89e3\u6cd53\u8bfe\u65f62.3\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b\u7ec4\u7684\u5e94\u75281\u8bfe\u65f6
\u7b2c\u4e09\u54682.3\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b\u7ec4\u7684\u5e94\u75283\u8bfe\u65f6\u7b2c\u4e8c\u7ae0\u590d\u4e602\u8bfe\u65f6
\u7b2c\u56db\u54683.1\u7ebf\u6bb5\u3001\u76f4\u7ebf\u3001\u5c04\u7ebf2\u8bfe\u65f63.2\u89d23\u8bfe\u65f6
\u7b2c\u4e94\u54683.3\u5e73\u9762\u76f4\u7ebf\u7684\u4f4d\u7f6e\u5173?3\u8bfe\u65f63.4\u56fe\u5f62\u7684\u5e73\u79fb2\u8bfe\u65f6
\u7b2c\u516d\u54683.5\u5e73\u884c\u7ebf\u7684\u6027\u8d28\u4e0e\u5224\u5b9a5\u8bfe\u65f6
\u7b2c\u4e03\u54683.6\u5782\u7ebf\u7684\u6027\u8d28\u4e0e\u5224\u5b9a5\u8bfe\u65f6
\u7b2c\u516b\u5468\u7b2c\u4e09\u7ae0\u590d\u4e602\u8bfe\u65f64.1\u5355\u9879\u5f0f\u3001\u591a\u9879\u5f0f3\u8bfe\u65f6
\u7b2c\u4e5d\u54684.1\u5408\u5e76\u540c\u7c7b\u98792\u8bfe\u65f64\uff0e2\u591a\u9879\u5f0f\u7684\u52a0\u6cd52\u8bfe\u65f64\uff0e3\u540c\u5e95\u6570\u5e42\u7684\u4e58\u6cd51\u8bfe\u65f6
\u7b2c\u5341\u5468
\u7b2c\u5341\u4e00\u5468
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\u7b2c\u5341\u4e09\u5468
\u7b2c\u5341\u56db\u54684\uff0e4\u4e58\u6cd5\u516c\u5f0f5\u8bfe\u65f6
\u7b2c\u5341\u4e94\u5468\u7b2c\u56db\u7ae0\u590d\u4e602\u8bfe\u65f65\uff0e1\u8f74\u53cd\u5c04\u4e0e\u8f74\u5bf9\u79f0\u56fe\u5f623\u8bfe\u65f6
\u7b2c\u5341\u516d\u54685\uff0e2\u7ebf\u6bb5\u7684\u5782\u76f4\u5e73\u5206\u7ebf2\u8bfe\u65f65\uff0e3\u4e09\u89d2\u5f621\u8bfe\u65f65\uff0e4?\u4e09\u89d2\u5f62\u7684\u5185\u89d2\u548c2\u8bfe\u65f6
\u7b2c\u5341\u4e03\u54685\uff0e5\u89d2\u5e73\u5206\u7ebf\u7684\u6027\u8d281\u8bfe\u65f65\uff0e6\u7b49\u8170\u4e09\u89d2\u5f623\u8bfe\u65f65\uff0e7\u7b49\u8fb9\u4e09\u89d2\u5f621\u8bfe\u65f6
\u7b2c\u5341\u516b\u5468\u7b2c\u4e94\u7ae0\u590d\u4e602\u8bfe\u65f66\uff0e1\u52a0\u6743\u5e73\u5747\u65703\u8bfe\u65f6
\u7b2c\u5341\u4e5d\u54686\uff0e2\u6781\u5dee\u3001\u65b9\u5dee5\u8bfe\u65f6
\u7b2c\u4e8c\u5341\u54686\uff0e3\u4e24\u7ec4\u6570\u636e\u7684\u6bd4\u8f831\u8bfe\u65f6\u7b2c\u516d\u7ae0\u590d\u4e601\u8bfe\u65f6\u671f\u8003\u6a21\u62df\u8bd5\u5377
\u7b2c\u4e8c\u5341\u4e00\u5468
1 \u6559\u6750\u5206\u6790
\u672c\u8bfe\u9009\u81ea\u65b0\u8bfe\u6807\u6570\u5b66\u6559\u79d1\u4e66\u5317\u5e08\u5927\u7248\u4e5d\u5e74\u7ea7\u4e0b\u518c\u7b2c\u56db\u7ae0\u7b2c\u4e8c\u8282\u3002\u5728\u5b66\u751f\u5b66\u8fc7\u52a0\u6743\u5e73\u5747\u6570\u548c\u5229\u7528\u52a0\u6743\u5e73\u5747\u6570\u89e3\u51b3\u4e0e\u7edf\u8ba1\u6709\u5173\u7684\u95ee\u9898\u4e4b\u540e\uff0c\u672c\u8bfe\u7ed3\u5408\u6982\u7387\u4e0e\u9891\u7387\u7684\u5173\u7cfb\uff0c\u5f15\u5bfc\u5b66\u751f\u8ba4\u8bc6\u548c\u7406\u89e3\u968f\u673a\u53d8\u91cf\u5747\u503c\u7684\u8ba1\u7b97,\u5e76\u5c06\u968f\u673a\u53d8\u91cf\u5747\u503c\u8ba1\u7b97\u8fd0\u7528\u4e8e\u201c\u5408\u7b97\u201d\u7684\u8bc4\u5224\u548c\u51b3\u7b56\u4e4b\u4e2d\u3002\u6559\u6750\u6ce8\u610f\u77e5\u8bc6\u7684\u524d\u540e\u8054\u7cfb\uff0c\u9009\u62e9\u4e86\u4e00\u4e2a\u5b66\u751f\u4ee5\u524d\u7814\u7a76\u8fc7\u7684\u95ee\u9898\u60c5\u5883\uff0c\u4ee5\u964d\u4f4e\u5b66\u751f\u89e3\u51b3\u95ee\u9898\u7684\u96be\u5ea6\uff1b\u540c\u65f6\u5728\u89e3\u51b3\u95ee\u9898\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53c8\u5f3a\u8c03\u4e86\u5b66\u751f\u7684\u4f53\u9a8c\uff0c\u8ba9\u5b66\u751f\u9996\u5148\u901a\u8fc7\u5b9e\u9a8c\u83b7\u5f97\u521d\u6b65\u7684\u611f\u53d7\uff0c\u518d\u901a\u8fc7\u548c\u524d\u4e00\u8282\u4e2d\u8fd0\u7528\u52a0\u6743\u5e73\u5747\u6570\u7684\u8054\u7cfb\uff0c\u9010\u6b65\u83b7\u5f97\u5bf9\u95ee\u9898\u7684\u7406\u8bba\u89e3\u91ca\u3002
2 \u5b66\u4e60\u8005\u5206\u6790
\u5728\u65e5\u5e38\u751f\u6d3b\u4e2d\u7ecf\u5e38\u4f1a\u9047\u5230\u5404\u79cd\u6447\u5956\u6d3b\u52a8\uff0c\u901a\u8fc7\u4ee5\u524d\u7684\u5b66\u4e60\uff0c\u5b66\u751f\u5df2\u521d\u6b65\u8ba4\u8bc6\u4e86\u8fd9\u4e9b\u6d3b\u52a8\u4e2d\u83b7\u80dc\u6216\u83b7\u5956\u7684\u53ef\u80fd\u6027\uff0c\u4f46\u5c1a\u672a\u5177\u6709\u6b63\u786e\u7684\u8bc4\u5224\u80fd\u529b\u548c\u51b3\u7b56\u80fd\u529b\u3002\u56e0\u6b64\u5e94\u8be5\u7ed9\u4e88\u5b66\u751f\u4e00\u5b9a\u7684\u6570\u5b66\u5de5\u5177\uff0c\u8ba9\u5b66\u751f\u77e5\u9053\u5982\u4f55\u8bc4\u5224\u67d0\u9879\u6d3b\u52a8\u662f\u5426\u201c\u5408\u7b97\u201d\u3002\u7531\u4e8e\u5b66\u751f\u5df2\u5b66\u8fc7\u52a0\u6743\u5e73\u5747\u6570\u53ca\u5176\u5728\u7edf\u8ba1\u4e2d\u7684\u8fd0\u7528\uff0c\u53ea\u8981\u5b66\u751f\u80fd\u7406\u89e3\u9891\u7387\u548c\u6982\u7387\u7684\u5173\u7cfb\uff0c\u5e76\u5c06\u5b83\u4eec\u6709\u673a\u7ed3\u5408\u8d77\u6765\u5b66\u4e60\u968f\u673a\u53d8\u91cf\u5747\u503c\u7684\u8ba1\u7b97\u5e94\u8be5\u4e0d\u4f1a\u6709\u592a\u5927\u7684\u56f0\u96be\u3002
3 \u6559\u5b66\u76ee\u6807
\u77e5\u8bc6\u4e0e\u6280\u80fd\uff1a\u5b66\u4f1a\u5229\u7528\u52a0\u6743\u5e73\u5747\u6570\u7684\u77e5\u8bc6\u8ba1\u7b97\u968f\u673a\u53d8\u91cf\u7684\u5747\u503c\uff0c\u521d\u6b65\u4f53\u4f1a\u5982\u4f55\u8bc4\u5224\u4e8b\u60c5\u662f\u5426\u201c\u5408\u7b97\u201d\uff0c\u8fdb\u4e00\u6b65\u5efa\u7acb\u548c\u53d1\u5c55\u826f\u597d\u7684\u968f\u673a\u89c2\u5ff5\u3002
\u8fc7\u7a0b\u4e0e\u65b9\u6cd5\uff1a\u7ecf\u5386\u731c\u60f3\u3001\u5b9e\u9a8c\u63a2\u7a76\u548c\u7406\u8bba\u63a8\u5bfc\u7684\u6d3b\u52a8\u8fc7\u7a0b\uff0c\u9886\u4f1a\u201c\u5408\u7b97\u201d\u65b9\u6848\u7684\u968f\u673a\u6570\u5b66\u539f\u7406\uff0c\u589e\u5f3a\u5b66\u751f\u7684\u6570\u5b66\u5e94\u7528\u610f\u8bc6\u548c\u80fd\u529b\u3002
\u60c5\u611f\u6001\u5ea6\u4ef7\u503c\u89c2\uff1a\u901a\u8fc7\u6570\u5b66\u63a2\u7a76\u6d3b\u52a8\uff0c\u53d1\u5c55\u5408\u4f5c\u4ea4\u6d41\u610f\u8bc6\u548c\u80fd\u529b\uff0c\u8fdb\u4e00\u6b65\u4f53\u4f1a\u6982\u7387\u4e0e\u7edf\u8ba1\u7684\u8054\u7cfb\uff0c\u4f53\u9a8c\u968f\u673a\u6570\u5b66\u7684\u5e94\u7528\u4ef7\u503c\u3002
4 \u6559\u5b66\u91cd\u96be\u70b9
\u91cd\u70b9\uff1a\u5b66\u4f1a\u8bc4\u5224\u67d0\u9879\u6d3b\u52a8\u662f\u5426\u201c\u5408\u7b97\u201d\u7684\u6570\u5b66\u5b9e\u9a8c\u548c\u7406\u8bba\u8ba1\u7b97\u7684\u65b9\u6cd5\u3002
\u96be\u70b9: \u7406\u89e3\u548c\u5e94\u7528\u7406\u8bba\u7684\u65b9\u6cd5\u8ba1\u7b97\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u3002
5 \u6559\u5b66\u65b9\u6cd5
\u9996\u5148\u521b\u8bbe\u5b66\u751f\u719f\u6089\u7684\u751f\u6d3b\u60c5\u5883\uff0c\u6fc0\u8d77\u5b66\u751f\u7684\u8ba4\u77e5\u51b2\u7a81\uff0c\u6fc0\u53d1\u5b66\u751f\u89e3\u51b3\u201c\u5408\u7b97\u201d\u95ee\u9898\u7684\u5b66\u4e60\u52a8\u673a\u3002\u6559\u5b66\u8fc7\u7a0b\u6309\u7167\u201c\u76f4\u89c9\u731c\u60f3 \u3001\u5b9e\u9a8c\u611f\u609f \u3001\u7406\u8bba\u8ba1\u7b97 \u3001\u5b9e\u8df5\u5e94\u7528\u201d\u7684\u8ba4\u77e5\u89c4\u5f8b\u8fdb\u884c\u8bbe\u8ba1\uff0c\u6ce8\u91cd\u5b9e\u9a8c\u4f30\u7b97\u4e0e\u7406\u8bba\u8ba1\u7b97\u76f8\u7ed3\u5408\uff0c\u6ce8\u91cd\u89e3\u51b3\u95ee\u9898\u7684\u6d3b\u52a8\u8fc7\u7a0b\uff0c\u8fd9\u6837\u65e2\u4fc3\u8fdb\u4e86\u5b66\u751f\u7684\u7406\u89e3\uff0c\u540c\u65f6\u4e5f\u6e17\u900f\u4e86\u6982\u7387\u7edf\u8ba1\u4e4b\u95f4\u7684\u8054\u7cfb\u3002\u7ec4\u7ec7\u5b66\u751f\u5408\u4f5c\u63a2\u7a76\u3001\u89e3\u91ca\u53d1\u73b0\uff0c\u8fdb\u4e00\u6b65\u53d1\u5c55\u5b66\u751f\u7684\u5408\u4f5c\u4ea4\u6d41\u610f\u8bc6\u548c\u80fd\u529b\u3002\u9f13\u52b1\u5b66\u751f\u601d\u7ef4\u7684\u591a\u6837\u6027\uff0c\u5f15\u5bfc\u5b66\u751f\u79ef\u6781\u53cd\u601d\uff0c\u4f53\u9a8c\u5b66\u4e60\u6210\u529f\u7684\u4e50\u8da3\u3002
6 \u6559\u5b66\u5a92\u4f53
\u6559\u5e08\u51c6\u5907\u591a\u5a92\u4f53\u6559\u5b66\u7684\u8bfe\u4ef6\u3001\u8f6c\u76d8\u53ca\u5f69\u7968\u5e7f\u544a\u7b49\u3002\u5b66\u751f\u8bfe\u524d\u505a\u4e00\u4e2a\u548c\u8bfe\u672c\u4e2d\u4e00\u6837\u7684\u67d0\u5546\u573a\u4f7f\u7528\u7684\u81ea\u7531\u8f6c\u52a8\u7684\u8f6c\u76d8\u3002
7 \u6559\u5b66\u8fc7\u7a0b
7.1 \u521b\u8bbe\u60c5\u5883\uff0c\u95ee\u9898\u5f15\u5165
\u5e08:\u4f60\u7814\u7a76\u8fc7\u6447\u5956\u6d3b\u52a8\u4e2d\u83b7\u5f97\u5404\u79cd\u5956\u9879\u7684\u53ef\u80fd\u6027\u5417?\u4f60\u60f3\u77e5\u9053\u6bcf\u4e00\u6b21\u6d3b\u52a8\u7684\u5e73\u5747\u6536\u76ca\u5417?\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u7814\u7a76\u5176\u4e2d\u7684\u5965\u79d8\u5427! (\u591a\u5a92\u4f53\u6f14\u793a)
\u67d0\u5546\u573a\u4e3a\u4e86\u5438\u5f15\u987e\u5ba2\uff0c\u8bbe\u7acb\u4e86\u4e00\u4e2a\u53ef\u4ee5\u81ea\u7531\u8f6c\u52a8\u7684\u8f6c\u76d81\uff0c\u5e76\u89c4\u5b9a\uff1a\u987e\u5ba2\u6bcf\u8d2d\u4e70100\u5143\u7684\u5546\u54c1\uff0c\u5c31\u80fd\u83b7\u5f97\u4e00\u6b21\u8f6c\u52a8\u8f6c\u76d8\u7684\u673a\u4f1a\u3002\u5982\u679c\u8f6c\u76d8\u505c\u6b62\u540e\uff0c\u6307\u9488\u6b63\u597d\u5bf9\u51c6\u7ea2\u8272\u3001\u9ec4\u8272\u3001\u7eff\u8272\u533a\u57df\uff0c\u90a3\u4e48\u987e\u5ba2\u5c31\u53ef\u4ee5\u5206\u522b\u83b7\u5f97100\u5143\u300150\u5143\u300120\u5143\u7684\u8d2d\u7269\u5238\uff0c\u51ed\u8d2d\u7269\u5238\u53ef\u4ee5\u5728\u8be5\u5546\u573a\u7ee7\u7eed\u8d2d\u7269\uff0c\u5982\u679c\u987e\u5ba2\u4e0d\u613f\u610f\u8f6c\u8f6c\u76d8\uff0c\u90a3\u4e48\u53ef\u4ee5\u76f4\u63a5\u83b7\u5f97\u8d2d\u7269\u523810\u5143\u3002\u8f6c\u8f6c\u76d8\u548c\u76f4\u63a5\u83b7\u5f97\u8d2d\u7269\u5238\uff0c\u4f60\u8ba4\u4e3a\u54ea\u79cd\u65b9\u5f0f\u66f4\u5408\u7b97?
\u8f6c\u76d81
\u5e08:\u5f53\u8f6c\u76d8\u505c\u6b62\u540e\uff0c\u6307\u9488\u53ef\u80fd\u843d\u5728\u54ea\u4e9b\u533a\u57df\uff1f\u83b7\u5f97\u8d2d\u7269\u5238\u7684\u673a\u4f1a\u5206\u522b\u6709\u591a\u5927\uff1f
\u751f\uff1a\u6307\u9488\u53ef\u80fd\u6307\u5411\u5404\u79cd\u989c\u8272\u7684\u533a\u57df\uff0c\u6839\u636e\u5404\u79cd\u989c\u8272\u533a\u57df\u5728\u8f6c\u76d8\u4e2d\u6240\u5360\u7684\u6bd4\u4f8b\uff1a\u7ea2\u8272\u4e3a \uff0c\u9ec4\u8272\u4e3a \uff0c\u7eff\u8272\u4e3a \u767d\u8272\u4e3a \uff0c\u90a3\u4e48\u53ef\u80fd\u83b7\u5f97100\u5143\u300150\u5143\u300120\u5143\u8d2d\u7269\u5238\u7684\u6982\u7387\u5206\u522b\u4e3a0.05\u30010.1\u548c0.2\uff0c\u6307\u9488\u6307\u5411\u767d\u8272\u533a\u57df\u7684\u6982\u7387\u4e3a0.65\uff0c\u6b64\u65f6\u4e0d\u80fd\u83b7\u5f97\u8d2d\u7269\u5238\u3002
\u5e08:\u5982\u679c\u4e0d\u8f6c\u52a8\u8f6c\u76d8\uff0c\u53ef\u4ee5\u76f4\u63a5\u83b7\u5f97\u8d2d\u7269\u523810\u5143\uff0c\u5982\u679c\u8f6c\u52a8\u8f6c\u76d8\uff0c\u5c31\u4f1a\u51fa\u73b0\u591a\u79cd\u53ef\u80fd\u7684\u7ed3\u679c\uff0c\u653e\u5f03\u8f6c\u52a8\u8f6c\u76d8\uff0c\u610f\u5473\u7740\u653e\u5f03\u4e86\u83b7\u5f97100\u5143\u300150\u5143\u300120\u5143\u8d2d\u7269\u5238\u7684\u673a\u4f1a\u3002\u5982\u679c\u4e0d\u653e\u5f03\uff0c\u5c31\u610f\u5473\u7740\u6709\u53ef\u80fd\u8fde\u83b7\u5f9710\u5143\u8d2d\u7269\u5238\u7684\u673a\u4f1a\u4e5f\u6ca1\u6709\u4e86\uff0c\u90a3\u4e48\u8be5\u5982\u4f55\u9009\u62e9\u6bd4\u8f83\u5408\u7b97\u5462\uff1f
\u4e0b\u9762\u6211\u4eec\u5148\u6765\u505a\u4e00\u4e2a\u5b9e\u9a8c\uff0c\u4e5f\u8bb8\u4f60\u4f1a\u4ece\u4e2d\u627e\u5230\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u529e\u6cd5\u3002
[\u662f\u5426\u201c\u5408\u7b97\u201d\u8981\u4ece\u6574\u4f53\u4e0a\u8ba1\u7b97\u968f\u673a\u53d8\u91cf\u7684\u5747\u503c\uff0c\u5b66\u751f\u53ef\u80fd\u4ecd\u505c\u7559\u5728\u786e\u5b9a\u6027\u601d\u7ef4\u4e4b\u4e2d,\u56e0\u6b64\u4ea7\u751f\u8ba4\u77e5\u4e0a\u7684\u51b2\u7a81\u3002\u8ba9\u5b66\u751f\u8bc4\u5224\u67d0\u9879\u6d3b\u52a8\u662f\u5426\u201c\u5408\u7b97\u201d\uff0c\u662f\u63d0\u9ad8\u5176\u51b3\u7b56\u80fd\u529b\u7684\u5173\u952e\uff0c\u901a\u8fc7\u8bbe\u7f6e\u8fd9\u79cd\u5e38\u89c1\u95ee\u9898\u60c5\u5883\uff0c\u9996\u5148\u8ba9\u5b66\u751f\u901a\u8fc7\u5b9e\u9a8c\u83b7\u5f97\u521d\u6b65\u7684\u611f\u53d7\u3002]
7.2 \u52a8\u624b\u5b9e\u9a8c\uff0c\u63ed\u793a\u89c4\u5f8b
\uff081\uff09\u6bcf\u56db\u4eba\u7ec4\u6210\u4e00\u5408\u4f5c\u5b66\u4e60\u5c0f\u7ec4\uff0c\u7528\u8bfe\u524d\u5236\u4f5c\u7684\u8f6c\u76d8\uff0c\u901a\u8fc7\u5b9e\u9a8c\u7684\u529e\u6cd5(\u6bcf\u7ec4\u5b9e\u9a8c100\u6b21)\u5206\u522b\u6c42\u51fa\u83b7\u5f97100\u5143\u300150\u5143\u300120\u5143\u8d2d\u7269\u5238\u4ee5\u53ca\u672a\u80fd\u83b7\u5f97\u8d2d\u7269\u5238\u7684\u9891\u7387\uff0c\u5e76\u636e\u6b64\u4f30\u8ba1\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\uff0c\u770b\u770b\u8f6c\u8f6c\u76d8\u548c\u76f4\u63a5\u83b7\u5f97\u8d2d\u7269\u5238\uff0c\u54ea\u79cd\u65b9\u5f0f\u66f4\u5408\u7b97\u3002
\uff082\uff09\u5168\u73ed\u4ea4\u6d41\uff0c\u770b\u770b\u5404\u5c0f\u7ec4\u7684\u7ed3\u8bba\u662f\u5426\u4e00\u81f4\uff0c\u5e76\u5c06\u5404\u7ec4\u7684\u6570\u636e\u6c47\u603b\uff08\u88681\uff09\uff0c\u8ba1\u7b97\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u5f97\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u3002
\u88681 \u8f6c\u8f6c\u76d8\u5b9e\u9a8c\u7684\u7ed3\u679c
\u83b7\u5f97100\u5143\u8d2d\u7269\u5238
\u83b7\u5f9750\u5143\u8d2d\u7269\u5238
\u83b7\u5f9720\u5143\u8d2d\u7269\u5238
\u672a\u80fd\u83b7\u5f97\u8d2d\u7269\u5238
\u672c\u7ec4
\u5168\u73ed
\u672c\u7ec4
\u5168\u73ed
\u672c\u7ec4
\u5168\u73ed
\u672c\u7ec4
\u5168\u73ed
\u9891\u6570
\u9891\u7387
a1
a2
a3
a4
\u5e08:\u4f60\u5728\u5b9e\u9a8c\u4e2d\u662f\u5982\u4f55\u8ba1\u7b97\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u5462?
\u5f53\u505a100\u6b21\u5b9e\u9a8c\u65f6\uff0c\u8bbe\u83b7\u5f97100\u5143\u8d2d\u7269\u5238\u7684\u9891\u7387\u4e3aa1\uff0c\u83b7\u5f9750\u5143\u8d2d\u7269\u5238\u7684\u9891\u7387\u4e3aa2\uff0c\u83b7\u5f9720\u5143\u7684\u8d2d\u7269\u5238\u7684\u9891\u7387\u4e3aa3\uff0c\u672a\u80fd\u83b7\u5f97\u8d2d\u7269\u5238\u7684\u9891\u7387\u4e3aa4\uff0c\u6839\u636e\u52a0\u6743\u5e73\u5747\u6570\u7684\u5b9a\u4e49\uff0c\u53ef\u5f97\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u4e3a\uff1a
100a1+50a2+20a3+0a4\uff1d100a1+50a2+20a3\uff08\u5143\uff09
\u5b66\u751f\u4ece\u7edf\u8ba1\u8868\u4e2d\u53ef\u4ee5\u770b\u5230\u6c47\u603b\u5168\u73ed\u7684\u6570\u636e\u4ee5\u540e\uff0c\u603b\u4f53\u4e0a\u6307\u9488\u505c\u5728\u6bcf\u79cd\u989c\u8272\u533a\u57df\u4e0a\u7684\u9891\u7387\u66f4\u63a5\u8fd1\u5404\u989c\u8272\u533a\u57df\u4e0e\u6574\u4e2a\u8f6c\u76d8\u7684\u9762\u79ef\u6bd4\u3002\u5373\u5f53\u8bd5\u9a8c\u6b21\u6570\u5f88\u5927\u65f6\uff0ca1\u3001a2\u3001a3\u3001a4\u5c06\u7a33\u5b9a\u4e8e\u548c\u5b83\u76f8\u5e94\u7684\u7406\u8bba\u6982\u7387\u3002\u6b64\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5b9e\u9a8c\u9891\u7387\u6765\u4f30\u8ba1\u7406\u8bba\u6982\u7387\u3002
\u5e08:\u5982\u679c\u628a\u4e0a\u56fe\u7684\u8f6c\u76d8\u6539\u4e3a\u8f6c\u76d82\uff0c\u5982\u679c\u8f6c\u76d8\u505c\u6b62\u540e\uff0c\u6307\u9488\u6b63\u597d\u5bf9\u51c6\u7ea2\u8272\u3001\u9ec4\u8272\u3001\u7eff\u8272\u533a\u57df\uff0c\u90a3\u4e48\u987e\u5ba2\u4ecd\u5206\u522b\u83b7\u5f97100\u5143\u300150\u5143\u300120\u5143\u7684\u8d2d\u7269\u5238\uff0c\u4e0e\u4e0a\u56fe\u7684\u8f6c\u76d8\u6bd4\uff0c\u54ea\u4e00\u4e2a\u8f6c\u76d8\u5bf9\u987e\u5ba2\u66f4\u5408\u7b97?\u5982\u679c\u6539\u7528\u8f6c\u76d83\u5462\uff1f
\u8f6c\u76d82 \u8f6c\u76d83
\u751f\uff1a\u4ea4\u6d41\u8ba8\u8bba
\u5e08\uff1a\u8f6c\u76d82\u548c\u539f\u6765\u7684\u8f6c\u76d8\u5bf9\u987e\u5ba2\u800c\u8a00\u7ed3\u679c\u662f\u4e00\u6837\u7684\u3002\u56e0\u4e3a\u6307\u9488\u843d\u5728\u7ea2\u8272\u533a\u57df\u3001\u9ec4\u8272\u533a\u57df\u548c\u7eff\u8272\u533a\u57df\u7684\u53ef\u80fd\u6027\u6ca1\u6709\u53d8\u3002\u8f6c\u76d83\u548c\u539f\u6765\u7684\u8f6c\u76d8\u5bf9\u987e\u5ba2\u800c\u8a00\u7ed3\u679c\u4e0d\u4e00\u6837\uff0c\u8f6c\u76d83\u7684\u7ed3\u679c\u5bf9\u987e\u5ba2\u6765\u8bf4\u66f4\u5408\u7b97\u3002\u56e0\u4e3a\u672a\u83b7\u8d2d\u7269\u5238\u548c\u83b7\u5f9750\u5143\u8d2d\u7269\u5238\u7684\u53ef\u80fd\u6027\u6ca1\u6709\u53d8\u5316\uff0c\u83b7\u5f9720\u5143\u8d2d\u7269\u5238\u7684\u53ef\u80fd\u6027\u51cf\u5c11 \uff0c\u83b7\u5f97100\u5143\u8d2d\u7269\u5238\u7684\u53ef\u80fd\u6027\u589e\u52a0 \u3002
[\u901a\u8fc7\u8f6c\u76d8\u7684\u201c\u53d8\u5f0f\u201d\uff0c\u8ba9\u5b66\u751f\u7406\u6027\u5730\u601d\u8003\u5f71\u54cd\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u7684\u56e0\u7d20\uff0c\u4e3a\u5b66\u751f\u5f97\u51fa\u540e\u9762\u7684\u7406\u8bba\u8ba1\u7b97\u65b9\u6cd5\u6253\u4e0b\u57fa\u7840\u3002]
7.3 \u7406\u8bba\u8ba1\u7b97\uff0c\u6784\u5efa\u8ba4\u77e5
\u5e08:\u5982\u679c\u4e0d\u7528\u8bd5\u9a8c\u7684\u65b9\u6cd5\uff0c\u4f60\u80fd\u6c42\u51fa\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u5417?
\u751f:\u7531\u8f6c\u76d82\u6211\u4eec\u77e5\u9053\uff0c\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\uff0c\u83b7\u5f97100\u5143\u8d2d\u7269\u5238\u7684\u6982\u7387\u4e3a \uff0c\u83b7\u5f9750\u5143\u8d2d\u7269\u5238\u7684\u6982\u7387\u4e3a \uff0c\u83b7\u5f9720\u5143\u8d2d\u7269\u5238\u7684\u6982\u7387\u4e3a \uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u8ba4\u4e3a\u8f6c\u52a8n\u6b21\u8f6c\u76d8\uff0c\u83b7\u5f97100\u5143\u8d2d\u7269\u5238\u7684\u6b21\u6570\u4e3a n\u6b21\uff0c\u83b7\u5f9750\u5143\u8d2d\u7269\u5238\u7684\u6b21\u6570\u4e3a n\u6b21\uff0c\u83b7\u5f9720\u5143\u8d2d\u7269\u5238\u7684\u6b21\u6570\u4e3a n\u6b21\uff0c\u6240\u4ee5\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u5e94\u8be5\u4e3a\uff1a(100\u00d7 n+50\u00d7 n+20\u00d7 n)\u00f7n=100\u00d7 +50\u00d7 +20\u00d7 =14(\u5143)\u3002
\u540c\u7406\uff0c\u4f7f\u7528\u8f6c\u76d83\uff0c\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u5e94\u8be5\u662f\uff1a
100\u00d7 +50\u00d7 +20\u00d7 =18(\u5143)
\u5e08:\u8fd9\u79cd\u7b97\u6cd5\u6211\u4eec\u66fe\u7ecf\u5728\u54ea\u91cc\u7528\u8fc7\u5417?
\u751f:\u8fd9\u79cd\u7b97\u6cd5\u4e0e\u4e0a\u4e00\u8282\u5c0f\u660e\u4f30\u7b97\u519c\u6751\u5c45\u6c11\u7684\u4eba\u5747\u7eaf\u6536\u5165\u7684\u65b9\u6cd5\u662f\u4e00\u81f4\u7684\u3002
[\u8fd9\u6837\u6709\u5229\u4e8e\u8f6c\u5230\u4e0b\u9762\u7814\u8ba8\u5c0f\u4eae\u7684\u505a\u6cd5\uff0c\u4f7f\u5b66\u751f\u5bf9\u7406\u8bba\u8ba1\u7b97\u968f\u673a\u53d8\u91cf\u7684\u5747\u503c\u6709\u4e2a\u6e05\u6670\u7684\u8ba4\u8bc6\uff0c\u5982\u679c\u5df2\u6709\u5b66\u751f\u60f3\u51fa\u4e86\u8fd9\u79cd\u7406\u8bba\u8ba1\u7b97\u65b9\u6cd5\uff0c\u90a3\u4e48\u5e94\u987a\u5e94\u5b66\u751f\u7684\u601d\u8def\u5f15\u5bfc\u4ed6\u4eec\u8fdb\u4e00\u6b65\u5730\u8ba8\u8bba\u3002]
7.4 \u8ba8\u8bba\u4ea4\u6d41\uff0c\u8fa8\u6790\u7406\u89e3
\u5e08:\u5c0f\u4eae\u6839\u636e\u8f6c\u76d82\uff0c\u7ed8\u5236\u4e86\u4e00\u4e2a\u6247\u5f62\u7edf\u8ba1\u56fe1\uff0c\u636e\u6b64\u4ed6\u8ba4\u4e3a\uff0c\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u662f100\u00d75%+50\u00d710\uff05+20\u00d720%\uff1d14(\u5143)\u3002\u4f60\u80fd\u89e3\u91ca\u5c0f\u4eae\u8fd9\u6837\u505a\u7684\u9053\u7406\u5417?
\u7edf\u8ba1\u56fe1
\u751f:\u6211\u8ba4\u4e3a\u5c0f\u4eae\u7684\u7b97\u6cd5\u662f\u6709\u9053\u7406\u7684\u3002
\u7531\u56fe1\u53ef\u77e5\uff0c\u81ea\u7531\u8f6c\u52a8\u8f6c\u76d8\uff0c\u6307\u9488\u843d\u5728\u7ea2\u8272\u533a\u57df\u3001\u9ec4\u8272\u533a\u57df\u3001\u7eff\u8272\u533a\u57df\u7684\u53ef\u80fd\u6027\u5927\u5c0f\u5373\u6982\u7387\u5206\u522b\u4e3a \u3001 \u3001 \uff0c\u6211\u4eec\u53ef\u4ee5\u628a \u3001 \u3001 \u770b\u4f5c\u6743\u91cd\uff0c\u56e0\u6b64\u5c0f\u4eae\u7ed8\u5236\u7684\u6247\u5f62\u7edf\u8ba1\u56fe\uff0c\u53cd\u6620\u4e86\u8f6c\u76d8\u505c\u6b62\u8f6c\u52a8\u65f6\uff0c\u6307\u9488\u6307\u5411\u7ea2\u8272\u533a\u57df\u3001\u9ec4\u8272\u533a\u57df\u3001\u7eff\u8272\u533a\u57df\u7684\u6743\u91cd\u3002\u7531\u52a0\u6743\u5e73\u5747\u6570\u7684\u8ba1\u7b97\u516c\u5f0f\u5c31\u53ef\u6c42\u51fa\u8f6c\u76d8\u6bcf\u8f6c\u52a8\u4e00\u6b21\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u662f:100\u00d75%+50\u00d710%+20\u00d720%\uff1d14(\u5143)\u3002
\u5e08:\u6309\u5c0f\u4eae\u7684\u7b97\u6cd5\uff0c\u5c0f\u660e\u4e00\u7ec4\u8f6c\u4e86100\u6b21\uff0c\u603b\u5171\u83b7\u5f97\u8d2d\u7269\u5238\u5e94\u4e3a1400\u5143\uff0c\u53ef\u5b9e\u9645\u4e0a\u4ed6\u4eec\u603b\u5171\u83b7\u5f97\u8d2d\u7269\u5238\u662f1320\u5143\u3002\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462\uff1f
\u751f:\u56e0\u4e3a\u7528\u5c0f\u4eae\u7684\u65b9\u6cd5\u8ba1\u7b97\u7684\u5e73\u5747\u6570\u662f\u7528\u7406\u8bba\u6982\u7387\u8ba1\u7b97\u51fa\u6765\u7684\uff0c\u4f46\u5b9e\u9645\u4e0a\u7684\u9891\u7387\u5f88\u96be\u548c\u7406\u8bba\u6982\u7387\u5b8c\u5168\u76f8\u540c\u3002
\u5e08:\u5927\u5bb6\u5bf9\u5b9e\u9645\u751f\u6d3b\u4e2d\u5b58\u5728\u7684\u4e0d\u786e\u5b9a\u73b0\u8c61\u7684\u8ba4\u8bc6\u662f\u6b63\u786e\u7684\uff0c\u5176\u5b9e\uff0c\u5b9e\u9a8c\u6b21\u6570\u5f88\u591a\u65f6\uff0c\u5b9e\u9a8c\u7ed3\u679c\u5e94\u8be5\u548c\u7406\u8bba\u503c\u76f8\u8fd1\uff0c\u4f46\u5b9e\u9a8c\u6b21\u6570\u518d\u591a\uff0c\u4e5f\u5f88\u96be\u4fdd\u8bc1\u5b9e\u9a8c\u7ed3\u679c\u4e0e\u7406\u8bba\u503c\u76f8\u7b49\uff0c\u8fd9\u662f\u6211\u4eec\u4f5c\u51fa\u51b3\u7b56\u548c\u8bc4\u5224\u65f6\u5e94\u8be5\u5177\u5907\u7684\u968f\u673a\u89c2\u5ff5\u3002
[\u65e8\u5728\u501f\u52a9\u6247\u5f62\u7edf\u8ba1\u56fe\uff0c\u5f15\u5bfc\u5b66\u751f\u83b7\u5f97\u8fd9\u79cd\u7406\u8bba\u8ba1\u7b97\u65b9\u6cd5\uff0c\u4f7f\u5b66\u751f\u8ba4\u8bc6\u6982\u7387\u4e0e\u7edf\u8ba1\u7684\u8054\u7cfb\u3002]
7.5 \u968f\u5802\u7ec3\u4e60\uff0c\u5de9\u56fa\u6df1\u5316
\u6539\u7528\u53e6\u4e00\u4e2a\u8f6c\u76d8\u8fdb\u884c\u4e0a\u9762\u7684\u6d3b\u52a8\uff0c\u5c0f\u9896\u6839\u636e\u5b9e\u9a8c\u6570\u636e\u7ed8\u5236\u51fa\u6247\u5f62\u7edf\u8ba1\u56fe2,\u6c42\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u3002
\u7edf\u8ba1\u56fe2
\u751f:\u6839\u636e\u6247\u5f62\u7edf\u8ba1\u56fe\uff0c\u53ef\u77e5\u6bcf\u8f6c\u52a8\u4e00\u6b21\u8f6c\u76d8\u6240\u83b7\u8d2d\u7269\u5238\u91d1\u989d\u7684\u5e73\u5747\u6570\u662f\uff1a
100\u00d710%+50\u00d715%+20\u00d725%\uff1d22.5(\u5143)\u3002
7.6 \u5f52\u7eb3\u603b\u7ed3\uff0c\u81ea\u6211\u8bc4\u4ef7
\u8fd9\u8282\u8bfe\u6211\u4eec\u7ee7\u7eed\u7ecf\u5386\u4e86\u89e3\u51b3\u95ee\u9898\u7684\u6d3b\u52a8\u8fc7\u7a0b\uff0c\u5b66\u4f1a\u5982\u4f55\u8bc4\u5224\u67d0\u4ef6\u4e8b\u60c5\u662f\u5426\u201c\u5408\u7b97\u201d\uff0c\u901a\u8fc7\u5177\u4f53\u95ee\u9898\u60c5\u5883\uff0c\u638c\u63e1\u4e86\u4e00\u5b9a\u7684\u5224\u65ad\u65b9\u6cd5\uff0c\u63d0\u9ad8\u4e86\u51b3\u7b56\u80fd\u529b\uff1b\u901a\u8fc7\u63a2\u7d22\u201c\u5e73\u5747\u6536\u76ca\u201d\u7684\u8ba1\u7b97\u65b9\u6cd5\uff0c\u9886\u4f1a\u5230\u968f\u673a\u6570\u5b66\u4e0e\u786e\u5b9a\u6570\u5b66\u4e4b\u95f4\u7684\u8054\u7cfb\u3002\u7ecf\u5386\u4e86\u5b9e\u9a8c\u4f30\u8ba1\u548c\u7406\u8bba\u8ba1\u7b97\u7684\u8fc7\u7a0b\u8fdb\u4e00\u6b65\u4f53\u4f1a\u5230\u6982\u7387\u4e0e\u7edf\u8ba1\u4e4b\u95f4\u7684\u8054\u7cfb\uff0c\u66f4\u597d\u5730\u5efa\u7acb\u4e86\u968f\u673a\u89c2\u5ff5\u3002
7.7 \u5e03\u7f6e\u4f5c\u4e1a\uff0c\u68c0\u6d4b\u53cd\u9988
(1) \u53e3\u888b\u91cc\u6709\u76f8\u540c\u76844\u4e2a\u767d\u7403\u548c2\u4e2a\u7ea2\u7403\uff0c\u4ece\u53e3\u888b\u91cc\u6478\u51fa2\u4e2a\u7403\uff0c\u5982\u679c\u4e24\u4e2a\u90fd\u662f\u767d\u7403\u7532\u80dc\uff0c\u5426\u5219\u4e59\u80dc\uff0c\u8bf7\u4f60\u60f3\u4e00\u60f3\uff0c\u8fd9\u4e2a\u6e38\u620f\u4e2d\uff0c\u8c01\u5408\u7b97\uff1f
(2) \u5982\u56fe\uff0c\u8f6c\u76d8\u88ab\u5747\u5300\u5206\u4e3a37\u683c\uff0c\u5206\u522b\u6807\u4ee50~36\u8fd937\u4e2a\u6570\u5b57\uff0c\u6e38\u620f\u8005\u6bcf\u6b21\u4e0b\u8d4c\u6ce82\u5143\uff0c\u53ef\u62bc\u5176\u4e2d\u7684\u4e00\u4e2a\u6570\u5b57\uff0c\u82e5\u8f6c\u76d8\u505c\u6b62\u8f6c\u52a8\u65f6\uff0c\u6307\u9488\u6240\u6307\u683c\u5b50\u7684\u6570\u5b57\u6070\u4e3a\u6e38\u620f\u8005\u6240\u62bc\u6570\u5b57\uff0c\u5219\u8fd4\u8fd8\u8d4c\u672c\u5e76\u83b7\u5f97\u5956\u52b170\u5143\uff0c\u5426\u5219\u6ca1\u6536\u8d4c\u672c\u3002\u8be5\u6e38\u620f\u5bf9\u6e38\u620f\u8005\u6709\u5229\u5417?\u8f6c\u52a8\u591a\u5c11\u6b21\u540e\uff0c\u6e38\u620f\u8005\u5e73\u5747\u6bcf\u6b21\u5c06\u83b7\u5229\u6216\u635f\u5931\u591a\u5c11\u5143?
\u8f6c\u76d84
8\u3000\u6559\u5b66\u53cd\u601d
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