> Tóner y equipos>Cartuchos y tóner>CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE
CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE Ver más grande

CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE

¿Tienes alguna pregunta?
Pregúntanos sobre este producto
CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE

CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE

T6M07AE. 825 páginas.

* Campos obligatorios

Añadir a mi lista
  • 1 ud (Cantidad mínima)
    22,54€
    22,54€/ud (IVA no incl)
  • 2 uds
    -1,64% dto.
    44,34€
    22,17€/ud (IVA no incl)
  • 3 uds
    -3,28% dto.
    65,40€
    21,80€/ud (IVA no incl)
  • 4 uds
    -6,52% dto.
    84,28€
    21,07€/ud (IVA no incl)
¡En Stock
Ver productos alternativos

22,54€/1 ud


22,54€/ud (IVA no incl)
Total con IVA: 27,28€
Referencia900076
Ean0889894728937
Part numberT6M07AE
FabricanteHP

Cartucho XL original de la marca HP.

  • Modelo: N.903
  • Referencia del fabricante: T6M07AE.
  • Tecnología de impresión: Inyección térmica de tinta HP
  • Rendimiento: 825 páginas.
  • Color: Magenta.
  • Compatible con: HP OFFICEJET 6960 / 6970.

Calidad 
Precio 
16/12/2020

Genial

El producto funciona correctamente, estoy muy satisfecha con mi compra.

    ¡Escriba su opinión!
    Debes para poder comentar los productos
    Te resolvemos todas tus dudas sobre CARTUCHO INK-JET HP 903XL COLOR MAGENTA T6M07AE Sé el primero en hacernos saber tus dudas acerca de este producto

    PRODUCTOS COMPLEMENTARIOS
    • {"id_product":"16119","id_supplier":"0","id_manufacturer":"12","id_category_default":"1933","id_shop_default":"1","id_tax_rules_group":"5","on_sale":"1","online_only":"0","ean13":"8410782114758","upc":"","ecotax":0,"quantity":112,"minimal_quantity":"1","price":25.5,"wholesale_price":"9.811000","unity":"","unit_price_ratio":"0.000000","additional_shipping_cost":"0.00","reference":"49279","supplier_reference":"","location":"","width":"0.000000","height":"0.000000","depth":"0.000000","weight":"0.392000","out_of_stock":"0","quantity_discount":"0","customizable":"0","uploadable_files":"0","text_fields":"0","active":"1","redirect_type":"404","id_product_redirected":"0","available_for_order":"1","available_date":"0000-00-00","condition":"new","show_price":"1","indexed":"1","visibility":"both","cache_is_pack":"0","cache_has_attachments":"0","is_virtual":"0","cache_default_attribute":"0","date_add":"2016-12-19 21:39:10","date_upd":"2025-04-28 10:22:15","advanced_stock_management":"0","pack_stock_type":"3","tarifa_roja":"0","fecha_almacen_mal":"0","fecha_almacen_gua":"0","fecha_importacion":"2020-08-06 00:07:16","was_imported":"csv","partnumber":"11475","range_1":"1","range_2":"3","range_3":"5","range_4":"7","multiplier_1":"2.147","multiplier_2":"2.082","multiplier_3":"1.876","multiplier_4":"1.706","multiplier_colegios":"1.38","umv":"1","simple_store":"2","multiplier_colegios2":"1.575","id_shop":"1","number_sales":"0","id_product_attribute":"0","product_attribute_minimal_quantity":null,"description":"<p>Papel fotogr\u00e1fico para uso cotidiano. Muy brillante. Secado instant\u00e1neo. Paquete de 100 hojas. Din A4. Gramaje: 180 g\/m2.<\/p>","description_short":"<p>Din A4.<\/p>","available_now":"","available_later":"","link_rewrite":"papel-foto-apli-glossy-180-g-m2-49279","meta_description":"Papel foto Apli Glossy 180 g\/m2 (49279). Entrega 48 horas. Precio m\u00ednimo garantizado","meta_keywords":"","meta_title":"Papel foto Apli Glossy 180 g\/m2 (49279)","name":"Papel foto Apli Glossy 180 g\/m2","id_image":"16119-3055984","legend":"","manufacturer_name":"Apli","category_default":"Papeles especiales: carb\u00f3n, transfer, continuo y foto","orderprice":"21.064300","almacen_dbp":"0","allow_oosp":0,"category":"papel-continuo-carbon-transfer-foto","link":"https:\/\/www.materialescolar.es\/papel-continuo-carbon-transfer-foto\/papel-foto-apli-glossy-180-g-m2-49279.html","attribute_price":0,"price_tax_exc":16.74,"price_without_reduction":25.494699999999998,"reduction":0,"specific_prices":{"id_specific_price":"3689249230","id_specific_price_rule":"0","id_cart":"0","id_product":"16119","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":16.74,"from_quantity":"7","reduction":"0.000000","reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"50"},"quantity_all_versions":112,"features":[{"name":"Tama\u00f1o de Papel","value":"Din A4","id_feature":"12"},{"name":"Tipo","value":"Fotograf\u00eda","id_feature":"11"},{"name":"Gramaje","value":"180 g\/m2","id_feature":"13"},{"name":"Color","value":"Blanco","id_feature":"14"},{"name":"Acabado","value":"Brillo","id_feature":"15"},{"name":"Adhesivo","value":"No","id_feature":"16"},{"name":"Ecol\u00f3gico","value":"No","id_feature":"17"},{"name":"Taladros","value":"No","id_feature":"18"},{"name":"N\u00ba Hojas \/ Paquete","value":"100","id_feature":"518"},{"name":"Uso","value":"Foto","id_feature":"625"}],"attachments":[],"virtual":0,"pack":0,"packItems":[],"nopackprice":0,"customization_required":false,"rate":21,"tax_name":"21%","quantity_discounts":[{"id_specific_price":"3689249227","id_specific_price_rule":"0","id_cart":"0","id_product":"16119","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"21.064300","from_quantity":"1","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"1","reduction_with_tax":0,"real_value":0.006896999999998599,"nextQuantity":3},{"id_specific_price":"3689249228","id_specific_price_rule":"0","id_cart":"0","id_product":"16119","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"20.426600","from_quantity":"3","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"3","reduction_with_tax":0,"real_value":0.7785139999999977,"nextQuantity":5},{"id_specific_price":"3689249229","id_specific_price_rule":"0","id_cart":"0","id_product":"16119","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"18.405500","from_quantity":"5","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"5","reduction_with_tax":0,"real_value":3.2240450000000003,"nextQuantity":7},{"id_specific_price":"3689249230","id_specific_price_rule":"0","id_cart":"0","id_product":"16119","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"16.737600","from_quantity":"7","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"7","reduction_with_tax":0,"real_value":5.242203999999997,"nextQuantity":-1}],"ecotax_tax_inc":0,"ecotax_tax_exc":"0.000000","ecotaxTax_rate":0,"productPriceWithoutEcoTax":25.5,"group_reduction":0,"no_tax":false,"tax_enabled":true,"customer_group_without_tax":"0","base_price":21.07,"productBasePriceTaxExcl_var":21.07,"productBasePriceTaxIncl_var":25.494699999999998,"mostrar_vip":false,"tax_rate_var":21}

      Total: 25,50€ /1 ud

      25,50€/ud (más IVA)

      21,07€
      21,07€/ud
      $product.price = 25.5 . $precio = 21.07 . $product.minimal_quantity = 1 . $minimal_quantity = 1 . $precio_pack = 21.07
      2
      3 unidades
      ¡Ahorra un 3.04%!
      61,29€
      20,43€/ud
      3
      5 unidades
      ¡Ahorra un 12.62%!
      92,05€
      18,41€/ud
      4
      7 unidades
      ¡Ahorra un 20.55%!
      117,18€
      16,74€/ud
      Din A4.
      desde 16,74€ + IVA
      16,74€
      Añadir al carrito Más
    • {"id_product":"127521","id_supplier":"0","id_manufacturer":"1322","id_category_default":"2473","id_shop_default":"1","id_tax_rules_group":"5","on_sale":"1","online_only":"0","ean13":"745883788651","upc":"","ecotax":0,"quantity":2,"minimal_quantity":"1","price":19.23,"wholesale_price":"8.613000","unity":"","unit_price_ratio":"0.000000","additional_shipping_cost":"0.00","reference":"163085","supplier_reference":"","location":"","width":"0.000000","height":"0.000000","depth":"0.000000","weight":"0.000000","out_of_stock":"0","quantity_discount":"0","customizable":"0","uploadable_files":"0","text_fields":"0","active":"1","redirect_type":"404","id_product_redirected":"0","available_for_order":"1","available_date":"0000-00-00","condition":"new","show_price":"1","indexed":"1","visibility":"both","cache_is_pack":"0","cache_has_attachments":"0","is_virtual":"0","cache_default_attribute":"0","date_add":"2021-08-28 00:00:47","date_upd":"2025-04-28 10:21:23","advanced_stock_management":"0","pack_stock_type":"3","tarifa_roja":"0","fecha_almacen_mal":"","fecha_almacen_gua":"","fecha_importacion":"2021-08-27 11:56:56","was_imported":"old","partnumber":"CAA001BT1MWH ","range_1":"1","range_2":"3","range_3":"5","range_4":"7","multiplier_1":"1.844","multiplier_2":"1.78","multiplier_3":"1.749","multiplier_4":"1.643","multiplier_colegios":"1.339","umv":"1","simple_store":"2","multiplier_colegios2":"1.376","id_shop":"1","number_sales":"0","id_product_attribute":"0","product_attribute_minimal_quantity":null,"description":"<table width=\"100%\">\n<tbody>\n<tr>\n<td>\n<p class=\"textoEspecial\">Cable belkin caa001bt1mwh lightning a usb-a boost charge longitud 1 m color blanco.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td>\n<p class=\"textoEspecial\">Disponibles en longitudes de 15 cm, 1, 2 y 3 m, estos cables lightning a usb-a son estupendos si necesitas cargar de una toma de corriente situada en la otra punta de la habitaci\u00f3n, o si quieres conectar un dispositivo a una bater\u00eda externa en una bolsa o en un bolsillo. Disponibles en dos colores, blanco y negro para que los combines a la perfecci\u00f3n con tu entorno.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","description_short":"<p>\u00a01 M\u00a0<\/p>","available_now":"","available_later":"","link_rewrite":"cable-belkin-caa001bt1mwh-lightning-a-usb-a-boost-charge-longitud-1-m-color-blanco-163085","meta_description":"CABLE BELKIN CAA001BT1MWH LIGHTNING A USB-A BOOST CHARGE LONGITUD 1 M COLOR BLANCO","meta_keywords":"","meta_title":"CABLE BELKIN CAA001BT1MWH LIGHTNING A USB-A BOOST CHARGE LONGITUD 1 M COLOR BLANCO","name":"CABLE BELKIN CAA001BT1MWH LIGHTNING A USB-A BOOST CHARGE LONGITUD 1 M COLOR BLANCO","id_image":"127521-3114651","legend":"","manufacturer_name":"Belkin","category_default":"Accesorios y adaptadores","orderprice":"15.882400","almacen_dbp":null,"allow_oosp":0,"category":"accesorios-informatica-y-adaptadores","link":"https:\/\/www.materialescolar.es\/accesorios-informatica-y-adaptadores\/cable-belkin-caa001bt1mwh-lightning-a-usb-a-boost-charge-longitud-1-m-color-blanco-163085.html","attribute_price":0,"price_tax_exc":14.16,"price_without_reduction":19.2269,"reduction":0,"specific_prices":{"id_specific_price":"3688887661","id_specific_price_rule":"0","id_cart":"0","id_product":"127521","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":14.16,"from_quantity":"7","reduction":"0.000000","reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"50"},"quantity_all_versions":2,"features":[{"name":"Uso \/ Aplicaci\u00f3n","value":"USB (Datos)","id_feature":"266"},{"name":"Longitud","value":"1 m","id_feature":"268"}],"attachments":[],"virtual":0,"pack":0,"packItems":[],"nopackprice":0,"customization_required":false,"rate":21,"tax_name":"21%","quantity_discounts":[{"id_specific_price":"3688887658","id_specific_price_rule":"0","id_cart":"0","id_product":"127521","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"15.882400","from_quantity":"1","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"1","reduction_with_tax":0,"real_value":0.009195999999999316,"nextQuantity":3},{"id_specific_price":"3688887659","id_specific_price_rule":"0","id_cart":"0","id_product":"127521","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"15.331200","from_quantity":"3","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"3","reduction_with_tax":0,"real_value":0.6761480000000013,"nextQuantity":5},{"id_specific_price":"3688887660","id_specific_price_rule":"0","id_cart":"0","id_product":"127521","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"15.064200","from_quantity":"5","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"5","reduction_with_tax":0,"real_value":0.9992180000000026,"nextQuantity":7},{"id_specific_price":"3688887661","id_specific_price_rule":"0","id_cart":"0","id_product":"127521","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"14.151200","from_quantity":"7","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"7","reduction_with_tax":0,"real_value":2.1039480000000026,"nextQuantity":-1}],"ecotax_tax_inc":0,"ecotax_tax_exc":"0.000000","ecotaxTax_rate":0,"productPriceWithoutEcoTax":19.23,"group_reduction":0,"no_tax":false,"tax_enabled":true,"customer_group_without_tax":"0","base_price":15.89,"productBasePriceTaxExcl_var":15.89,"productBasePriceTaxIncl_var":19.2269,"mostrar_vip":false,"tax_rate_var":21}

      Total: 19,23€ /1 ud

      19,23€/ud (más IVA)

      15,89€
      15,89€/ud
      $product.price = 19.23 . $precio = 15.89 . $product.minimal_quantity = 1 . $minimal_quantity = 1 . $precio_pack = 15.89
      6
      3 unidades
      ¡Ahorra un 3.46%!
      46,02€
      15,34€/ud
      7
      5 unidades
      ¡Ahorra un 5.16%!
      75,35€
      15,07€/ud
      8
      7 unidades
      ¡Ahorra un 10.89%!
      99,12€
      14,16€/ud
       1 M 
      desde 14,16€ + IVA
      14,16€
      Añadir al carrito Más
    • {"id_product":"16390","id_supplier":"0","id_manufacturer":"11","id_category_default":"2235","id_shop_default":"1","id_tax_rules_group":"5","on_sale":"1","online_only":"0","ean13":"0884962894453","upc":"","ecotax":0,"quantity":124,"minimal_quantity":"1","price":54.93,"wholesale_price":"34.165000","unity":"","unit_price_ratio":"0.000000","additional_shipping_cost":"0.00","reference":"49814","supplier_reference":"","location":"","width":"0.000000","height":"0.000000","depth":"0.000000","weight":"0.062000","out_of_stock":"1","quantity_discount":"0","customizable":"0","uploadable_files":"0","text_fields":"0","active":"1","redirect_type":"404","id_product_redirected":"0","available_for_order":"1","available_date":"0000-00-00","condition":"new","show_price":"1","indexed":"1","visibility":"both","cache_is_pack":"0","cache_has_attachments":"0","is_virtual":"0","cache_default_attribute":"0","date_add":"2016-12-19 21:39:14","date_upd":"2025-04-28 10:22:15","advanced_stock_management":"0","pack_stock_type":"3","tarifa_roja":"0","fecha_almacen_mal":"0","fecha_almacen_gua":"0","fecha_importacion":"2020-08-06 00:07:18","was_imported":"retenido","partnumber":"CH563EE","range_1":"1","range_2":"2","range_3":"3","range_4":"4","multiplier_1":"1.3284","multiplier_2":"1.3068","multiplier_3":"1.2852","multiplier_4":"1.242","multiplier_colegios":"1.12","umv":"1","simple_store":"2","multiplier_colegios2":"1.15","id_shop":"1","number_sales":"0","id_product_attribute":"0","product_attribute_minimal_quantity":null,"description":"<p>Cartucho HP 301XL Negro CH563EE. Deskjet 1000, 1050, 1050A, 2000, 2050, 3000, 3050. 480 p\u00e1ginas.<\/p>","description_short":"<p><span>CH563EE. 480 PAG<\/span><\/p>","available_now":"","available_later":"ENCARGAR (72 h.)","link_rewrite":"cartucho-hp-301xl-color-negro-ch563ee-49814","meta_description":"Cartucho HP 301XL color negro CH563EE. Env\u00edo en 48 horas. Devoluci\u00f3n sin compromiso.","meta_keywords":"","meta_title":"Cartucho HP 301XL color negro CH563EE (49814)","name":"CARTUCHO INK-JET HP 301XL COLOR NEGRO CH563EE","id_image":"16390-3055576","legend":"","manufacturer_name":"HP","category_default":"Cartuchos y t\u00f3ner","orderprice":"45.384800","almacen_dbp":"-37","allow_oosp":1,"category":"cartuchos-y-toner","link":"https:\/\/www.materialescolar.es\/cartuchos-y-toner\/cartucho-hp-301xl-color-negro-ch563ee-49814.html","attribute_price":0,"price_tax_exc":42.44,"price_without_reduction":54.9219,"reduction":0,"specific_prices":{"id_specific_price":"3689250913","id_specific_price_rule":"0","id_cart":"0","id_product":"16390","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":42.44,"from_quantity":"4","reduction":"0.000000","reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"50"},"quantity_all_versions":124,"features":[{"name":"Tipo m\u00e1quina","value":"Impresora tinta","id_feature":"301"},{"name":"Calidad fotogr\u00e1fica","value":"No","id_feature":"302"},{"name":"Tipo consumible","value":"Cartucho","id_feature":"303"},{"name":"Tipo","value":"Original","id_feature":"646"}],"attachments":[],"virtual":0,"pack":0,"packItems":[],"nopackprice":0,"customization_required":false,"rate":21,"tax_name":"21%","quantity_discounts":[{"id_specific_price":"3689250910","id_specific_price_rule":"0","id_cart":"0","id_product":"16390","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"45.384800","from_quantity":"1","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"1","reduction_with_tax":0,"real_value":0.006292000000001963,"nextQuantity":2},{"id_specific_price":"3689250911","id_specific_price_rule":"0","id_cart":"0","id_product":"16390","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"44.646900","from_quantity":"2","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"2","reduction_with_tax":0,"real_value":0.8991509999999963,"nextQuantity":3},{"id_specific_price":"3689250912","id_specific_price_rule":"0","id_cart":"0","id_product":"16390","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"43.908900","from_quantity":"3","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"3","reduction_with_tax":0,"real_value":1.7921309999999977,"nextQuantity":4},{"id_specific_price":"3689250913","id_specific_price_rule":"0","id_cart":"0","id_product":"16390","id_shop":"1","id_shop_group":"0","id_currency":"0","id_country":"0","id_group":"0","id_customer":"0","id_product_attribute":"0","price":"42.433000","from_quantity":"4","reduction":0,"reduction_tax":"1","reduction_type":"amount","from":"0000-00-00 00:00:00","to":"0000-00-00 00:00:00","score":"48","quantity":"4","reduction_with_tax":0,"real_value":3.5779700000000005,"nextQuantity":-1}],"ecotax_tax_inc":0,"ecotax_tax_exc":"0.000000","ecotaxTax_rate":0,"productPriceWithoutEcoTax":54.93,"group_reduction":0,"no_tax":false,"tax_enabled":true,"customer_group_without_tax":"0","base_price":45.39,"productBasePriceTaxExcl_var":45.39,"productBasePriceTaxIncl_var":54.9219,"mostrar_vip":false,"tax_rate_var":21}

      Total: 54,93€ /1 ud

      54,93€/ud (más IVA)

      45,39€
      45,39€/ud
      $product.price = 54.93 . $precio = 45.39 . $product.minimal_quantity = 1 . $minimal_quantity = 1 . $precio_pack = 45.39
      10
      2 unidades
      ¡Ahorra un 1.63%!
      89,30€
      44,65€/ud
      11
      3 unidades
      ¡Ahorra un 3.26%!
      131,73€
      43,91€/ud
      12
      4 unidades
      ¡Ahorra un 6.5%!
      169,76€
      42,44€/ud
      CH563EE. 480 PAG
      desde 42,44€ + IVA
      42,44€
      Añadir al carrito Más

      Descuentos para colegios