gre数学疑难问题解答思路
<p> 如今已经是新<span word="gre">gre</span>考试时代，新<span word="gre">gre</span>数学考试难度会随第一个<span word="section">section</span>的准确率而相应的提高难度，这是众所周知的事情了，下面小编为大家搜索整理的有关<span word="gre">gre</span>数学疑难问题解决思路：画图法和概念法。考生朋友们应该尽快适应新<span word="gre">gre</span>数学考试的变化，以不变应万变。</p><p> 常见数学疑难几经解答思路</p><p> 1.从2 3 4 5 6 7 8 9中取数字组成三位数号码，<span word="assign">assign</span> <span word="to">to</span> 330 <span word="employee">employee</span>, 数字不重复， 问多少号码<span word="unassigned">unassigned</span>?</p><p> 解：<span word="P">P</span>==336</p><p> 336-330=6</p><p> 2.一个工作<span word="W">W</span>，<span word="X">X</span>做要比<span word="Y">Y</span>做少两天，<span word="X">X</span>，<span word="Y">Y</span>一起做4/3<span word="W">W</span>要3天，求<span word="X">X</span>单独做2<span word="W">W</span>要几天?</p><p> 解：令<span word="W">W</span>/<span word="X">X</span>=<span word="x">x</span>，<span word="W">W</span>/<span word="Y">Y</span>=<span word="y">y</span>，则<span word="x">x</span>+2=<span word="y">y</span></p><p> /=3 获得更多<span word="gre">gre</span>考试咨询点击进入</p><p> 解：因为<span word="f">f</span>=9<span word="f">f</span>,所以两数百位个位都相同，令<span word="a">a</span>为<span word="m">m</span>的十位，<span word="b">b</span>为<span word="n">n</span>的十位则可知，/=9</p><p> 解得<span word="a">a</span>-<span word="b">b</span>=2</p><p> 所以<span word="m">m</span>-<span word="v">v</span>=210=20</p><p> 4.10的<span word="n">n</span>次方减38所得数的<span word="digit">digit</span> <span word="sum">sum</span> 为350. <span word="n">n</span>=?</p><p> 解：9+=350</p><p> 5.1到<span word="n">n</span>是连续整数, 1到<span word="n">n</span> 数的乘积能被990 整除, 问<span word="n">n</span> 最少是?</p><p> 解：990=11109，所以<span word="n">n</span>不能小于11</p><p> 新<span word="gre">gre</span>数学考试难度系数增大，对我们大部分国内考生来说并不构成威胁，相对于国外考生来说我们国内考生在新<span word="gre">gre</span>数学考试还是占有很大优势的，希望广大考生摆正心态不要有心理压力。</p>
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