gre数学基本概念及实例解析(3)
<p> <span word="gre">gre</span>数学考试在新<span word="gre">gre</span>考试当中增加了一些难度，但是<span word="gre">gre</span>考生也不要太紧张，只要把一些<span word="gre">gre</span>数学基本概念掌握好，解题时就一定能轻松应对。</p><p> 数学各个数位的表达</p><p> 个位：<span word="units">units</span>,<span word="ones">ones</span></p><p> 个位以上的其他整数数位：基数词+<span word="S">S</span></p><p> 例如：十位 <span word="tens">tens</span></p><p> 小数位：序数词+<span word="S">S</span></p><p> 例如：十分位 <span word="tenths">tenths</span></p><p> 例题：<span word="A">A</span> <span word="worker">worker</span> <span word="numbered">numbered</span> <span word="the">the</span> <span word="pages">pages</span> <span word="of">of</span> <span word="a">a</span> <span word="book">book</span>, <span word="with">with</span> 1 <span word="on">on</span> <span word="the">the</span> <span word="first">first</span> <span word="page">page</span>. <span word="In">In</span> <span word="numbering">numbering</span> <span word="the">the</span> <span word="page">page</span>, <span word="he">he</span> <span word="printed">printed</span> <span word="a">a</span> <span word="total">total</span> <span word="of">of</span> 63 <span word="digits">digits</span>.</p><p> <span word="A">A</span>. <span word="the">the</span> <span word="number">number</span> <span word="of">of</span> <span word="pages">pages</span> <span word="in">in</span> <span word="the">the</span> <span word="book">book</span></p><p> <span word="B">B</span>. 37</p><p> 小数<span word="decimals">decimals</span></p><p> <span word="repeating">repeating</span> <span word="decimals">decimals</span> 循环小数</p><p> <span word="terminating">terminating</span> <span word="decimals">decimals</span> 有限小数</p><p> <span word="round">round</span> <span word="to">to</span> <span word="the">the</span> <span word="nearest">nearest</span></p><p> 四舍五入</p><p> 分数 <span word="fractions">fractions</span></p><p> <span word="fractions">fractions</span>=<span word="numerator">numerator</span>/<span word="denominator">denominator</span></p><p> <span word="The">The</span> <span word="least">least</span> <span word="common">common</span> <span word="denominator">denominator</span> 最小公分母</p><p> 集合 <span word="set">set</span></p><p> 例题.<span word="If">If</span> 75 <span word="percent">percent</span> <span word="of">of</span> <span word="a">a</span> <span word="class">class</span> <span word="are">are</span> <span word="members">members</span> <span word="of">of</span> <span word="club">club</span> <span word="A">A</span>, 55 <span word="percent">percent</span> <span word="are">are</span> <span word="members">members</span> <span word="of">of</span> <span word="club">club</span> <span word="B">B</span>, <span word="and">and</span> 20 <span word="percent">percent</span> <span word="are">are</span> <span word="not">not</span> <span word="members">members</span> <span word="of">of</span> <span word="either">either</span> <span word="club">club</span> <span word="A">A</span> <span word="or">or</span> <span word="B">B</span>, <span word="what">what</span> <span word="percent">percent</span> <span word="are">are</span> <span word="members">members</span> <span word="of">of</span> <span word="both">both</span> <span word="A">A</span> <span word="and">and</span> <span word="B">B</span>?</p><p> <span word="A">A</span>.10%</p><p> <span word="B">B</span>.20%</p><p> <span word="C">C</span>.30%</p><p> <span word="D">D</span>.50%</p><p> <span word="E">E</span>.60%</p><p> 数列<span word="sequence">sequence</span>/<span word="progression">progression</span></p>
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