{"id":115393,"date":"2020-01-29T18:20:53","date_gmt":"2020-01-29T17:20:53","guid":{"rendered":"https:\/\/www.superprof.es\/diccionario\/aritmetica\/sumar.html"},"modified":"2026-10-07T17:43:41","modified_gmt":"2026-10-07T15:43:41","slug":"sumar","status":"publish","type":"post","link":"https:\/\/www.superprof.es\/diccionario\/matematicas\/aritmetica\/sumar.html","title":{"rendered":"La suma o adici\u00f3n"},"content":{"rendered":"<section style=\"\">\r\n          \n\n<p class=\"wp-block-paragraph\">La <strong>suma o adici\u00f3n<\/strong> es la operaci\u00f3n matem\u00e1tica que resulta al reunir en una sola varias cantidades.<\/p>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">Las n\u00fameros que se suman se llaman <strong>sumandos<\/strong> y el resultado <strong>suma<\/strong> o total.<\/p>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">Para su notaci\u00f3n se emplea entre los <strong>sumandos<\/strong> el signo <strong>+<\/strong> que se lee \"<strong>m\u00e1s<\/strong>\".<\/p>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/la-suma-o-adici&oacute;n-1.gif\" alt=\"Explicaciones y ejemplos de la suma o adici&oacute;n - 1\"  ><\/p>\n\n\r\n               \r\n\r\n            \n\n<h2 class=\"wp-block-heading\">La operaci\u00f3n de sumar<\/h2>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">En la pr\u00e1ctica de la suma podemos distinguir tres casos:<\/p>\n\n\r\n              \n\n<h3 class=\"wp-block-heading\">1\u00ba Sumar dos n\u00fameros de una sola cifra<\/h3>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">La <strong>suma<\/strong> de dos n\u00fameros de una sola cifra se halla mentalmente, una vez que se ha aprendido  la <strong>tabla de la suma<\/strong>:<\/p>\n\n\r\n\n\n<table class=\"responsive t_izq\" data-min=\"8\" data-max=\"12\">\r\n                  <tr>\r\n                    <th> <\/th>\r\n                    <th>1<\/th>\r\n                    <th>2<\/th>\r\n                    <th>3<\/th>\r\n                    <th>4<\/th>\r\n                    <th>5<\/th>\r\n                    <th>6<\/th>\r\n                    <th>7<\/th>\r\n                    <th>8<\/th>\r\n                    <th>9<\/th>\r\n    <\/tr>\r\n                  <tr>\r\n                    <th>1<\/th>\r\n                    <td>2<\/td>\r\n                    <td>3<\/td>\r\n                    <td>4<\/td>\r\n                    <td>5<\/td>\r\n                    <td>6<\/td>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>2<\/th>\r\n                    <td>3<\/td>\r\n                    <td>4<\/td>\r\n                    <td>5<\/td>\r\n                    <td>6<\/td>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>3<\/th>\r\n                    <td>4<\/td>\r\n                    <td>5<\/td>\r\n                    <td>6<\/td>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>4<\/th>\r\n                    <td>5<\/td>\r\n                    <td>6<\/td>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>5<\/th>\r\n                    <td>6<\/td>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                    <td>14<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>6<\/th>\r\n                    <td>7<\/td>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                    <td>14<\/td>\r\n                    <td>15<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>7<\/th>\r\n                    <td>8<\/td>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                    <td>14<\/td>\r\n                    <td>15<\/td>\r\n                    <td>16<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>8<\/th>\r\n                    <td>9<\/td>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                    <td>14<\/td>\r\n                    <td>15<\/td>\r\n                    <td>16<\/td>\r\n                    <td>17<\/td>\r\n                  <\/tr>\r\n                  <tr>\r\n                    <th>9<\/th>\r\n                    <td>10<\/td>\r\n                    <td>11<\/td>\r\n                    <td>12<\/td>\r\n                    <td>13<\/td>\r\n                    <td>14<\/td>\r\n                    <td>15<\/td>\r\n                    <td>16<\/td>\r\n                    <td>17<\/td>\r\n                    <td>18<\/td>\r\n                  <\/tr>\r\n                <\/table>\n\n\n\n\n<p class=\"wp-block-paragraph\"><br \/><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2\u00ba Sumar  un n\u00famero de una cifra y otro cualquiera<\/h3>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">Se agregan las unidades del segundo n\u00famero a las del primero y, caso que no pasen de nueve, los otros n\u00fameros del primer sumando no var\u00edan.<\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\">533 + 5 = 538<\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\">Si la suma pasa a la de 9, se a\u00f1ade una unidad al n\u00famero que se\u00f1ala las decenas, en el primer sumando.<\/p>\n\n\r\n              \n\n<p class=\"wp-block-paragraph\">533 + 9 = 542<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br \/><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3\u00ba Sumar  n\u00fameros de varias cifras<\/h3>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\">Se colocan los n\u00fameros unos debajo de otros, de modo que las unidades queden debajo de las unidades, la decenas debajo o de las decenas, etc. <\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/la-suma-o-adici&oacute;n-2.gif\" alt=\"Explicaciones y ejemplos de la suma o adici&oacute;n - 2\"  ><\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\">Se suman las unidades de la primera columna, si es un n\u00famero de una cifra, se escribe al pie de la columna.<\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/la-suma-o-adici&oacute;n-3.gif\" alt=\"Explicaciones y ejemplos de la suma o adici&oacute;n - 3\"  ><\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\">Y si tiene m\u00e1s de una cifra, se escribe al pie de la columna \u00fanicamente la cifra de las unidades, a\u00f1adiendo la decenas a la columna siguiente, procediendo a continuaci\u00f3n de igual forma.<\/p>\n\n\r\n                \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/la-suma-o-adici&oacute;n-4.gif\" alt=\"Explicaciones y ejemplos de la suma o adici&oacute;n - 4\"  ><\/p>\n\n\n<\/section>","protected":false},"excerpt":{"rendered":"<p>La suma o adici\u00f3n es la operaci\u00f3n matem\u00e1tica que resulta al reunir en una sola varias cantidades. Las n\u00fameros que se suman se llaman sumandos y el resultado suma o total. Para su notaci\u00f3n se emplea entre los sumandos el signo + que se lee \u00abm\u00e1s\u00bb. La operaci\u00f3n de sumar En la pr\u00e1ctica de la [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[377],"tags":[379],"class_list":["post-115393","post","type-post","status-publish","format-standard","hentry","category-aritmetica","tag-s"],"acf":[],"author_meta":{"display_name":"Andra","author_link":"https:\/\/www.superprof.es\/diccionario\/author\/andra"},"featured_img":null,"coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/aritmetica\" class=\"advgb-post-tax-term\">Aritm\u00e9tica<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Aritm\u00e9tica<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/aritmetica\" class=\"advgb-post-tax-term\">s<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">s<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Publicado 7 a\u00f1os hace","modified":"Actualizado 2 semanas hace"},"absolute_dates":{"created":"Publicado el 29 enero 2020","modified":"Actualizado el 7 octubre 2026"},"absolute_dates_time":{"created":"Publicado el 29 enero 2020 18 h 20 min","modified":"Actualizado el 7 octubre 2026 17 h 43 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/115393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/comments?post=115393"}],"version-history":[{"count":5,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/115393\/revisions"}],"predecessor-version":[{"id":141255,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/115393\/revisions\/141255"}],"wp:attachment":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/media?parent=115393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/categories?post=115393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/tags?post=115393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}