{"id":27,"date":"2023-03-08T20:09:23","date_gmt":"2023-03-08T20:09:23","guid":{"rendered":"https:\/\/el-raconet.com\/?p=27"},"modified":"2023-08-07T10:39:17","modified_gmt":"2023-08-07T10:39:17","slug":"com-resoldre-restes-portant","status":"publish","type":"post","link":"https:\/\/el-raconet.com\/index.php\/2023\/03\/08\/com-resoldre-restes-portant\/","title":{"rendered":"Com resoldre restes portant"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">La resta portant<\/h2>\n\n\n\n<p>La resta \u00e9s una operaci\u00f3 aritm\u00e8tica b\u00e0sica que es fa entre dos o m\u00e9s n\u00fameros per obtenir la difer\u00e8ncia entre ells. En una resta, hi ha un nombre minuend (el nombre del qual es resta) i un nombre subtrahend (el nombre que es resta). El resultat de la resta es anomenat difer\u00e8ncia.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-2-edited.png\" alt=\"Les parts de la resta\" class=\"wp-image-34\" width=\"308\" height=\"169\"\/><figcaption class=\"wp-element-caption\">Les parts de la resta<\/figcaption><\/figure><\/div>\n\n\n<p>Quan es realitza una  resta amb nombres grans, en algunes ocasions, com per exemple <strong>872 &#8211; 439<\/strong>, es comen\u00e7a per restar els d\u00edgits de la dreta, \u00e9s a dir les unitats (2-9), per\u00f2 es produeix un problema quan el d\u00edgit superior \u00e9s m\u00e9s petit que l&#8217;inferior, ja que no es pot restar un nombre m\u00e9s gran d&#8217;un m\u00e9s petit. Quan ens trobem en aquesta situaci\u00f3, ens trobem davant d&#8217;una <strong>resta portant<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-800-\u00d7-800-px-1-2-edited.png\" alt=\"Exemple de resta portant\" class=\"wp-image-37\" width=\"318\" height=\"179\" srcset=\"https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-800-\u00d7-800-px-1-2-edited.png 800w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-800-\u00d7-800-px-1-2-edited-600x338.png 600w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-800-\u00d7-800-px-1-2-edited-300x169.png 300w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/24-13-800-\u00d7-800-px-1-2-edited-768x432.png 768w\" sizes=\"auto, (max-width: 318px) 100vw, 318px\" \/><figcaption class=\"wp-element-caption\">Exemple de resta portant<\/figcaption><\/figure><\/div>\n\n\n<p>Quan ens trobem davant d&#8217;aquest problema, tenim diferents opcions o metodologies per arribar a la soluci\u00f3 correcta, anem a veure algunes opcions:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Resta portant amb cigrons<\/h2>\n\n\n\n<p>Primer de tot, \u00e9s important entendre b\u00e9 el concepte de resta portant i saber identificar quan ens trobem davant d&#8217;una. Per aix\u00f2, una molt bona opci\u00f3 \u00e9s representar aquesta operaci\u00f3 amb un material que podem trobar a la cuina de casa nostra, <strong>cigrons<\/strong>. Aix\u00f2 sumat a algun recipient com petits gots de pl\u00e0stic, ser\u00e0 tot el necessari per fer aquesta activitat. Els cigrons ens serviran per representar les unitats i els gots de pl\u00e0stic per representar les desenes. <\/p>\n\n\n\n<p>Primer haurem de representar el nombre m\u00e9s gran, \u00e9s a dir el <strong>minuend<\/strong> i despr\u00e9s intentar restar-li el nombre m\u00e9s petit, \u00e9s a dir el <strong>subtrahend<\/strong>. Si es tracta d&#8217;una <strong>resta portant<\/strong>, veurem que no tenim suficients <strong>unitats<\/strong> per extreure i necessitarem desfer una <strong>desena<\/strong> en deu unitats per poder completar la resta. <\/p>\n\n\n\n<p>A continuaci\u00f3 teniu un <strong>v\u00eddeo<\/strong> on queda m\u00e9s clar:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"RESTA PORTANT AMB CIGRONS | Numeraci\u00f3 i c\u00e0lcul\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/P9-uWBHwLQA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Resta portant amb cigrons<\/figcaption><\/figure>\n\n\n\n<p>Una vegada aquesta metodologia s&#8217;ent\u00e9n b\u00e9, podem passar a fer servir aquest m\u00e8tode per\u00f2 sense cigrons, d&#8217;una manera m\u00e9s senzilla i mec\u00e0nica. Aqu\u00ed teniu la manera de com fer-ho de forma <strong>escrita<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-823x1024.png\" alt=\"Resta portant escrita\" class=\"wp-image-38\" width=\"293\" height=\"364\" srcset=\"https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-823x1024.png 823w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-600x746.png 600w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-241x300.png 241w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-768x955.png 768w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant-1235x1536.png 1235w, https:\/\/el-raconet.com\/wp-content\/uploads\/2023\/03\/portant.png 1316w\" sizes=\"auto, (max-width: 293px) 100vw, 293px\" \/><figcaption class=\"wp-element-caption\">Resta portant escrita<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">El m\u00e8tode de l&#8217;ascensor<\/h2>\n\n\n\n<p>Un altre m\u00e8tode molt \u00fatil per resoldre restes portants \u00e9s amb el <strong>m\u00e8tode de l&#8217;ascensor<\/strong>, tot i que \u00e9s important assimilar el concepte de resta com s&#8217;ha mostrat anteriorment, ja que aquesta metodologia \u00e9s m\u00e9s una mec\u00e0nica i costa m\u00e9s trobar-li el sentit i integrar que passa quan resolem una resta portant.<\/p>\n\n\n\n<p>Per comprendre aquest m\u00e8tode, hem d&#8217;imaginar que tenim un <strong>ascensor<\/strong>, per\u00f2 amb un greu problema, aquest nom\u00e9s pot <strong>pujar<\/strong>. Aix\u00ed doncs, quan ens trobem davant d&#8217;una resta portant, el nombre del subtrahend no podr\u00e0 arribar a la planta del d\u00edgit de sobre (minuend), ja que \u00e9s menor, aix\u00ed doncs, s&#8217;haur\u00e0 d&#8217;afegir un 1 al davant i convertir-lo en un nombre m\u00e9s gran, al qual ara si, podr\u00e0 arribar. Despr\u00e9s nom\u00e9s haurem de sumar una desena al minuend i ja podrem fer la <strong>resta<\/strong>.<\/p>\n\n\n\n<p>Aqu\u00ed us deixo un<strong> v\u00eddeo <\/strong>on es veu m\u00e9s clar:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"RESTA PORTANT AMB L&#039;ASCENSOR | Numeraci\u00f3 i C\u00e0lcul\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/uxgtehaYoy0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Resta portant amb l&#8217;ascensor<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>La resta \u00e9s una operaci\u00f3 aritm\u00e8tica b\u00e0sica que es fa entre dos o m\u00e9s n\u00fameros per obtenir la difer\u00e8ncia entre ells.<\/p>\n","protected":false},"author":1,"featured_media":337,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[7,5,6,3,4],"class_list":["post-27","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-numeracio-i-calcul","tag-cicle-mitja","tag-matematiques","tag-primaria","tag-resta","tag-resta-portant"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/posts\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":4,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/posts\/27\/revisions"}],"predecessor-version":[{"id":100,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/posts\/27\/revisions\/100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/media\/337"}],"wp:attachment":[{"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/media?parent=27"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/categories?post=27"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/el-raconet.com\/index.php\/wp-json\/wp\/v2\/tags?post=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}