小学数学名词解释汇总
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://q4.itc.cn/q_70/images03/20240701/fb326a4bf8384400b82e9fb44f012d48.gif" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">数学名词概念</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://q0.itc.cn/q_70/images03/20240701/005d4d18c48f4e499cd29fd7dce58561.gif" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">用来<span style="color: black;">暗示</span>“多少”或“第几”的叫做数,它是数学上最基本的概念之一。数的概念是在人类生产和生活的实践中逐步行程和发展起来的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">数字:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">用来记数的符号叫做数字。在数学中常用的有中国数字和阿拉伯数字两种。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">阿拉伯数字:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1、2、3、4、5、6、7、8、9、0叫做阿拉伯数字,它们是<span style="color: black;">此刻</span>世界上各国通用的数字。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">自然数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在数物体的过程中,数出的0、1、2、3、4、……都叫自然数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">基数和序数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">当一个自然数被用来<span style="color: black;">暗示</span>事物数量多少的时候,<span style="color: black;">一般</span><span style="color: black;">叫作</span>为基数,当一个自然数被用来<span style="color: black;">暗示</span>事物<span style="color: black;">秩序</span>的时候,<span style="color: black;">一般</span><span style="color: black;">叫作</span>为序数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">整数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">自然数<span style="color: black;">亦</span><span style="color: black;">叫作</span>整数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">数字值:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">数字本身所<span style="color: black;">暗示</span>的值叫做数字值。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">位置值:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">数字本身与其位置结合起来所<span style="color: black;">暗示</span>的值叫做位置值。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">数位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">写数时,<span style="color: black;">根据</span><span style="color: black;">必定</span>的<span style="color: black;">次序</span>,把各个计数单位<span style="color: black;">摆列</span>在<span style="color: black;">必定</span>的位置上,各个<span style="color: black;">区别</span>的计数单位所占的位置叫做数位。在整数数位<span style="color: black;">次序</span>表中的个位、十位、百位……都是数位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">位数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个整数含有数位的数目叫做位数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">整十数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">整十数是特殊的两位数,<span style="color: black;">亦</span><span style="color: black;">便是</span>个位是0的两位数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">高位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在一个数里,某一位左边的数位是这一个及右边的数位的高位。左边<span style="color: black;">第1</span>位是这个数的最高位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">低位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在一个数里,某一位右边的数位是这一位及左边的数位的低位,右边<span style="color: black;">第1</span>位是这个数的最低位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">数级:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">我国习惯上把多位数按四位分级,即从个位起,每四个数位算作一级。个、十、百、千位是个级,万、十万、百万、千万是万级,亿、十亿、百亿、千亿位是亿级。个级,万级,亿级等叫做数级。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">准确数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在<span style="color: black;">实质</span>生活中有些量<span style="color: black;">必须</span>用和<span style="color: black;">实质</span><span style="color: black;">状况</span>完全符合的数来<span style="color: black;">暗示</span>,这些数叫做准确数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">近似数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">有<span style="color: black;">有些</span>量,<span style="color: black;">实质</span>不可能或不<span style="color: black;">必须</span>用准确数<span style="color: black;">暗示</span>,取与原来<span style="color: black;">实质</span>数很接近的一个数,这个数叫做近似数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">加法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把两个数合并在<span style="color: black;">一块</span>,求一共是多少的运算<span style="color: black;">办法</span>,叫做加法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">进位加法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在加法运算中,<span style="color: black;">倘若</span>某一数位上的两个或几个数相加满10,要向前一位进1,这种<span style="color: black;">办法</span>叫做进位,含有进位的加法叫做进位加法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">减法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">减法<span style="color: black;">便是</span>已知两个加数的和与其中的一个加法,求另一个加数的运算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">退位减法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在减法运算中,当被减数某一位上的数<span style="color: black;">不足</span>减时,就要向前一位借1‘当作这个数位上的10,并和原来的数加在<span style="color: black;">一块</span>,<span style="color: black;">而后</span>再减,这种<span style="color: black;">办法</span>叫做退位,含有退位的减法叫做退位减法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">验算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">检测</span>运算结果<span style="color: black;">是不是</span>正确的<span style="color: black;">办法</span>,叫做验算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">例题:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在小学教材里,例题是示范性的题目,用<span style="color: black;">来讲</span>明某类问题的解法,<span style="color: black;">拥有</span><span style="color: black;">必定</span>的典型性。教材中,介绍每一类知识都配有一道或几道例题。例题<span style="color: black;">重点</span>用于课堂<span style="color: black;">教育</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">习题:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在小学教材里,习题是练习性题目,用来巩固所学的知识。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">运算符号:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">运算符号<span style="color: black;">便是</span><span style="color: black;">暗示</span>计算<span style="color: black;">办法</span>的符号。在小学运算符号中有+,--,×,÷四种。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">算式:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把数字用+,--,×,÷等运算符号连结起来而形成的横列的式子,叫做算式,<span style="color: black;">亦</span>叫做横式。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">式子:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">式子<span style="color: black;">便是</span>算式、代数式、方程式等的总<span style="color: black;">叫作</span>。算式<span style="color: black;">能够</span>看成是式子,但式子不<span style="color: black;">必定</span>都是算式。式子在<span style="color: black;">无</span><span style="color: black;">需求</span>计算时,<span style="color: black;">能够</span>不算,而算式<span style="color: black;">通常</span>都<span style="color: black;">需求</span>算出结果。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">计算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">按照</span>算式中给定的数目并<span style="color: black;">经过</span>运算,求出这个算式结果的过程,叫做计算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">乘法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">求几个相同加数的和的简便运算,叫做乘法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">乘法表:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把两个一位数相乘的积,<span style="color: black;">根据</span>乘数、被乘数的<span style="color: black;">体积</span><span style="color: black;">次序</span>依次列成的一个表格,叫做乘法表。乘法<span style="color: black;">亦</span>叫乘法口诀,<span style="color: black;">一般</span><span style="color: black;">亦</span><span style="color: black;">叫作</span>,“九九表”。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">因数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">几个数相乘,每一个数都叫做它们的积的因数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">除法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">已知两个因数的积与其中的一个因数,求另一个因数的运算,叫做除法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">等分除和<span style="color: black;">包括</span>除:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">除法有两方面的<span style="color: black;">道理</span>:把一个数(被分的总数,叫做被除数)平均分成若干份(要分的份数,叫做除法,)求一份是多少,叫做等分除,求一个数里面<span style="color: black;">包括</span>几个另一个数,叫做<span style="color: black;">包括</span>除。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">有余数的除法:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>两个整数相除<span style="color: black;">不可</span>得到整数商,<span style="color: black;">那样</span>被除数中最多含有的除数的个数,叫做不完全商,所余的部分,即被除数减去不完全商与除数的乘积所得的差,叫做余数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">第1</span>级运算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在数的运算中,加法与减法叫做<span style="color: black;">第1</span>级运算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">第二级运算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在数的运算中,乘法与除法叫做第二级运算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">四则混合运算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在一个算式中,<span style="color: black;">倘若</span>含有两种或两种以上的运算,<span style="color: black;">一般</span>叫做混合运算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">脱式:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">针对</span>四则混合运算的式题,<span style="color: black;">根据</span>运算的<span style="color: black;">次序</span>,<span style="color: black;">循序渐进</span>地运算的式子,叫做脱式。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">简便计算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在进行加、减、乘、除运算时,有时<span style="color: black;">能够</span>利用数与数之间的特殊关系,使计算过程简单化,或直接得出结果,这种<span style="color: black;">办法</span>叫做简便运算,又叫速算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">公式:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">用数学符号或文字<span style="color: black;">暗示</span>各个数量之间的关系的式子,叫做公式。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">法则:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">法则<span style="color: black;">便是</span>计算的<span style="color: black;">办法</span>,常常用文字<span style="color: black;">来讲</span>明,<span style="color: black;">按照</span>计算的种类,而有<span style="color: black;">区别</span>的名<span style="color: black;">叫作</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">运算定律:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在四则运算中,<span style="color: black;">拥有</span>某种规律性的结论,叫做运算定律。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">逆运算:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">两种运算中,<span style="color: black;">第1</span>种运算的<span style="color: black;">要求</span>是第二种运算的结果,第二种运算的结果是<span style="color: black;">第1</span>种运算的<span style="color: black;">要求</span>。这两种运算叫做互为逆运算。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">整除:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">“整数A除以整数B(B不为0)。<span style="color: black;">倘若</span>商是整数,<span style="color: black;">况且</span>又<span style="color: black;">无</span>余数,<span style="color: black;">此时</span>就叫做a能被b整除,<span style="color: black;">或</span>叫做b能除尽a。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">除尽:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个数a除以另一个不为0的数b,<span style="color: black;">无</span>余数时,叫做a能被b除尽,<span style="color: black;">或</span>叫做b能除尽a。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">除不尽:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个数a除以另一个不为0的数b,当商是无限循环小数时,<span style="color: black;">咱们</span>就说b除不尽a,<span style="color: black;">或</span>说a<span style="color: black;">不可</span>被b除尽。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">约数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>一个数a能被另一个数b整除,数b就叫做数a的约数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">倍数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>一个数a能被另一个数b整除,数a就叫做数b的倍数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">奇数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">不可</span>被2整除的数,叫做奇数,<span style="color: black;">亦</span>叫做单数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">偶数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">能被2整除的数,叫做偶数,<span style="color: black;">亦</span>叫做双数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">质数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个数除了1和它本身以外,<span style="color: black;">再也不</span>有别的约数,这个数就叫做质数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">合数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个数除了1和它本身以外,还有别的约数,这个数就叫做合数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1既不是质数,<span style="color: black;">亦</span>不是合数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">质因数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">每一个</span>合数都<span style="color: black;">能够</span>写成几个质数相乘的形式,这几个质数就叫做这个合数的质因数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">分解质因数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把一个合数用质因数相乘的形式<span style="color: black;">暗示</span>出来,叫做分解质因数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">最大公约数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">几个数公有的约数,叫做这几个数的公约数,其中最大的一个叫做这几个数的最大公约数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">最小公倍数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">几个数公有的倍数,叫做这几个数的公倍数,其中最小的一个叫做这几个数的最小公倍数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">互质数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">几个数的最大公约数是1的时候,这几个数就叫做互质数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">小数数位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在一个小数里,小数部分的各数位,叫做小数数位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">小数位数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在一个小数里,<span style="color: black;">倘若</span>小数部分有几个数字<span style="color: black;">构成</span>,就叫几位小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">纯小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个整数部分是零的小数。纯小数比1小。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">带小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个小数,当它的整数部分不是零时,就叫做带小数,带小数比1大。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">有限小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">小数部分位数是有限的小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">无限小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">小数部分位数是无限的小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">循环小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个无限小数的小数部分,从某一位起一个或几个数字依次<span style="color: black;">持续</span>地重复<span style="color: black;">显现</span>,这个无限小数叫做无限循环小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">循环节:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在循环小数中重复<span style="color: black;">显现</span>的,<span style="color: black;">根据</span><span style="color: black;">必定</span><span style="color: black;">次序</span><span style="color: black;">摆列</span>的一个或几个数字。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">纯循环小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在循环小数中,<span style="color: black;">倘若</span>循环节是从小数点右边的<span style="color: black;">第1</span>位就<span style="color: black;">起始</span>的,叫做纯循环小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">混循环小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在循环小数中,<span style="color: black;">倘若</span>循环节不是从小数点右边的<span style="color: black;">第1</span>位<span style="color: black;">起始</span>,而是在小数点与寻环节之间有着一个<span style="color: black;">或</span>几个不重复的数字的,叫做混循环小数.</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">无限不循环小数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个无限小数,<span style="color: black;">倘若</span>小数部分的数字<span style="color: black;">摆列</span>不是循环<span style="color: black;">显现</span>,就叫做无限不循环小数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">单位“1”,在分数中,单位“1”<span style="color: black;">暗示</span><span style="color: black;">能够</span>平均分的任何事物,小到一粒芝麻,大到一个地球,都<span style="color: black;">能够</span>看作是单位“1”,<span style="color: black;">然则</span>,无限多的事物<span style="color: black;">不可</span>看作单位“1”,<span style="color: black;">由于</span>无限多的事物是不可分的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">分数单位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把单位“1”平均分成若干份,<span style="color: black;">暗示</span><span style="color: black;">这般</span>一份的数,<span style="color: black;">便是</span>这个分数的分数单位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">真分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">分子比分母小的分数,叫做真分数。真分数比1小。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">假分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">分子比分母大,或分子和分母相等的分数,叫做假分数假分数大于1或等于1.</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">带分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个整数(零除外)和一个真分数合成的数,叫做带分数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">最简分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">分子和分母是互质数的分数,叫做最简分数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">约分:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个分数化成同它相等<span style="color: black;">然则</span>分子,分母都比较小的分数的过程,叫做约分。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">同分母分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">分母相同的几个分数,<span style="color: black;">或</span>说分数单位相同的几个分数,叫做同分母分数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">通分:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">把异分母分数分别化成和原来分数相等的同分母分数的过程。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">公分母:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">通常</span><span style="color: black;">状况</span>下,几个异分母的分数,通分时所化成的相同的分母,叫做这几个分数的公分母。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">最小公分母:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">几个异分母分数的分母的最小公倍数,叫做这几个异分母分数化为同分母分数的最小公分母。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">倒数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>一个数和另一个数相乘的积等于1,<span style="color: black;">那样</span>其中一个数叫做另一个数的倒数。这两个数<span style="color: black;">亦</span>叫做互为倒数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">繁分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个分数,它的分子,分母里又含有分数的,叫做繁分数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">百分数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">暗示</span>一个数是另一个数的百分之几的数,叫做百分数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">成数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">成数<span style="color: black;">亦</span>是<span style="color: black;">非常</span>数。几成<span style="color: black;">便是</span><span style="color: black;">非常</span>之几。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">近似值:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个接近准确值的数(比准确值略多些或少些)。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">客观事物所<span style="color: black;">拥有</span>的能区别程度<span style="color: black;">区别</span>的属性叫做量。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">不连续量:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">凡是用数数的<span style="color: black;">办法</span>进行计量的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">连续量:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">没法</span>用数数的<span style="color: black;">办法</span>进行计量的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">名数:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">量数和计量单位的合<span style="color: black;">叫作</span>叫做名数。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">高级单位和低级单位:</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在同类的计量单位中,<span style="color: black;">很强</span>的计量单位是高级单位,较小的计量单位是低级单位。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">小学数学全版高频知识点汇总 2024-06-26 </p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">小学数学<span style="color: black;">必须</span>知识点总归纳,考前记住<span style="color: black;">基本</span>题不失分 2024-06-25</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">小学数学1-6年级【总复习,知识点大全】家长必<span style="color: black;">保藏</span> 2024-06-21 </p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">基本</span>巩固/</span><span style="color: black;">标签▍</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">小数/编辑▍</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">小学数学</span>/综合整理<span style="color: black;">▍</span></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">// </p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">免责声明</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1.本公众号部分转载的<span style="color: black;">文案</span>、图文、视频来自网络,其版权和文责属原作者所有,若<span style="color: black;">源自</span>标注错误或侵犯到您的权益,烦请<span style="color: black;">通知</span>,<span style="color: black;">咱们</span>将立即删除。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2.本公众号编辑部工作人员的原创<span style="color: black;">文案</span>,其版权属于<span style="color: black;">咱们</span><span style="color: black;">微X</span>公众号所属主体。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3.本公众号特约稿原创<span style="color: black;">文案</span>,其版权和文责属作者所有。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4.若要转载原创<span style="color: black;">文案</span>用于<span style="color: black;">商场</span>用途,请联系<span style="color: black;">咱们</span>,未经同意不得转载。任何转载请注明<span style="color: black;">文案</span><span style="color: black;">源自</span>。如有问题,请联系<span style="color: black;">咱们</span>,谢谢!</span><a style="color: black;"><span style="color: black;">返回<span style="color: black;">外链论坛:www.fok120.com</span>,查看<span style="color: black;">更加多</span></span></a></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">责任编辑:网友投稿</span></p>
论坛的成功是建立在我们诚恳、务实、高效、创新和团结合作基础上,我们要把这种精神传递下去。 感谢你的精彩评论,为我的思绪打开了新的窗口。 期待楼主的下一次分享!” 你的见解真是独到,让我受益匪浅。
页:
[1]