2085,数字的读作和写作分别是什么

时间:2023-07-24 21:23:52编辑:coo君

1,数字的读作和写作分别是什么

读作:用中文字按读的方法写出来。例如 56 读作:五十六。写作:用阿拉伯数字把数写出来。例如 八十二 写作 :82。数学作业中,数字读作的意思是将这个数字的读法用汉字写出来,写作是的意思将读出的数字用数字表示出来。扩展资料:读数法有两种:1、按照数的横列自左至右把各个数字依次读出来,如3045002 读作三零四五零零二,这种读法在读纯小数或记录时用,称其为简读法,可用于十进数和非十进数的读数。2、按照数的横列自右至左,以四位为一级或三位为一节,然后从左至右读数,称其为分级读数法或分节读数法,统称繁读法,这种读法一般用于读十进整数。二、读数法则按照四位分级的原则,我国的读数法则是:1、四位以内的数,按照数位顺序,从高位读起。2、四位以上的数,先从右向左四位分级,然后从最高级起,依次读亿级、万级、个级。读出各级里的数和它们的级名。亿级里的数,按照个级的数的读法来读,再在后面加上一个 “亿”字;万级里的数,按照个级的数的读法来读,再在后面加上一个“万”字;3、每级末尾不管有几个“0”,都不读;其他数位上有一个“0”或几个“0”,都只读一个零。三、归纳要点1、读数的时候,从高位开始,一级一级地读。读亿级、万级时,按个级的读法读,只要在后面加读一个“亿”或“万”字。2、数中间有1个0,或连续有几个0,只读一个零。3、每一级末尾的0都不读。

2,怎么约分?

约分就是分子分母可以除以相同的数,然后得到简化后的分数。约分步骤如下:1.将分子分母分解因数;2.找出分子分母公因数;3.消去非零公因数。约分时,如果能很快看出分子和分母的最大公因数,直接用它们的最大公约数去除比较简便。扩展资料“分数的分子和分母同时除以一个相同的数(0除外),分数的大小不变——分数的基本性质”来进行约分。方法一:可以用分子和分母的公因数(1除外)去除例: /iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560"/>,/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9"/>,则/iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57"/>就是最简分数像这样,把一个分数化成和它相等,但分子和分母都比较小的分数叫做约分(一般要化成最简分数)方法二:直接用分数的分子和分母的最大公因数(1除外)去除例: /iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"/>则/iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"/>就是最简分数小结:一般用分子和分母的公因数(1除外)去除分数的分子和分母,通常要除到最简分数为止。

3,约分怎么约啊?

约分就是分子分母可以除以相同的数,然后得到简化后的分数。约分步骤如下:1.将分子分母分解因数;2.找出分子分母公因数;3.消去非零公因数。约分时,如果能很快看出分子和分母的最大公因数,直接用它们的最大公约数去除比较简便。扩展资料“分数的分子和分母同时除以一个相同的数(0除外),分数的大小不变——分数的基本性质”来进行约分。方法一:可以用分子和分母的公因数(1除外)去除例: /iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/21a4462309f790529af05ddc00f3d7ca7acbd560"/>,/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9"/>,则/iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/d01373f082025aaf10ce7b29f7edab64024f1a57"/>就是最简分数像这样,把一个分数化成和它相等,但分子和分母都比较小的分数叫做约分(一般要化成最简分数)方法二:直接用分数的分子和分母的最大公因数(1除外)去除例: /iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"/>则/iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"/>就是最简分数小结:一般用分子和分母的公因数(1除外)去除分数的分子和分母,通常要除到最简分数为止。

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