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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(1)\"><em></em>下载文档(未登录)小学六年级数学负数知识点描述：任何正数前加上负号便成了负数。一个负数是其绝对值的相反数。在数轴线上，负数都在0的左侧，最早记载负数的是我国古代的数学著作《九章算术》。下面是小编整理的小学六年级数学负数知识点，仅供参考希望能够帮助到大家。小学六年级数学负数知识点一、负数的</a>';
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