{"id":187507,"date":"2023-04-17T22:12:19","date_gmt":"2023-04-18T01:12:19","guid":{"rendered":"http:\/\/clubes.obmep.org.br\/blog\/?page_id=187507"},"modified":"2023-04-18T18:41:11","modified_gmt":"2023-04-18T21:41:11","slug":"a-matematica-nos-documentos-a-matematica-dos-cpfs","status":"publish","type":"page","link":"https:\/\/clubes.obmep.org.br\/blog\/a-matematica-nos-documentos-a-matematica-dos-cpfs\/","title":{"rendered":"A Matem\u00e1tica nos Documentos: A Matem\u00e1tica dos CPF\u00b4s"},"content":{"rendered":"<p style=\"margin:20px;\">\n<div class=\"gr1 cbv1\" style=\"width:95%\">\n<p class=\"ti1 cv\" style=\"line-height:25px;margin:10px\"> A Matem\u00e1tica dos CPF&#8217;s<\/p>\n<hr style=\"height:3px;background-color:#6d496d; border: 0 none\"\/>\n<p style=\"margin:40px;\">\n<p>Toda pessoa que se inscreve no Cadastro de Pessoas F\u00edsicas da Receita Federal do Brasil recebe um n\u00famero de inscri\u00e7\u00e3o de onze d\u00edgitos decimais com a seguinte configura\u00e7\u00e3o: <strong>ABC.DEF.GHI-JK<\/strong>.<\/p>\n<ul>\n<li> Os primeiros oito d\u00edgitos, <strong>ABCDEFGH<\/strong>, formam o n\u00famero-base definido pela Receita Federal no momento da inscri\u00e7\u00e3o.<\/li>\n<li> O nono d\u00edgito, <strong>I<\/strong>, define a Regi\u00e3o Fiscal respons\u00e1vel pela inscri\u00e7\u00e3o.<\/li>\n<li> O pen\u00faltimo, <strong>J<\/strong>, \u00e9 o d\u00edgito verificador dos nove primeiros.<\/li>\n<li> O \u00faltimo, <strong>K<\/strong>, \u00e9 o d\u00edgito verificador dos noves anteriores a ele.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f011.png\" style=\"border:0px;\"  alt=\"\" width=\"650\" height=\"118\" class=\"aligncenter size-full wp-image-129696\" srcset=\"https:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f011.png 760w, https:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f011-300x54.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f007.png\"  style=\"border:0px;\"   alt=\"\" width=\"325\" height=\"325\" class=\"alignright size-full wp-image-129640\" srcset=\"https:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f007.png 325w, https:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f007-150x150.png 150w, https:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/f007-300x300.png 300w\" sizes=\"auto, (max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>A Regi\u00e3o Fiscal onde \u00e9 emitido o CPF (definida pelo nono d\u00edgito) tem as seguintes identifica\u00e7\u00f5es:<br \/>\n<span style=\"padding-left:30px; color:#f35609;\"><strong>1 &#8211; DF, GO, MS, MT e TO<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#28a428;\"><strong>2 &#8211; AC, AM, AP, PA, RO e RR<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#EE0000;\"><strong>3 &#8211;  CE, MA e PI<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#dbbd1e;\"><strong>4 &#8211; AL, PB, PE, RN<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#28a428;\"><strong>5 &#8211; BA e SE<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#dbbd1e;\"><strong>6 &#8211; MG<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#EE0000;\"><strong>7 &#8211; ES e RJ<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#28a428;\"><strong>8 &#8211; SP<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#dbbd1e;\"><strong>9 &#8211; PR e SC<\/strong><\/span><br \/>\n<span style=\"padding-left:30px; color:#EE0000;\"><strong>0 &#8211; RS<\/strong><\/span><\/p>\n<p>No caso da 10\u00aa Regi\u00e3o Fiscal (Rio Grande do Sul), o algarismo zero \u00e9 utilizado como nono d\u00edgito.<br \/>\nPodem existir casos espec\u00edficos em que esse nono d\u00edgito n\u00e3o esteja de acordo com os determinados acima.<\/p>\n<p class=\"ti2\">Mas o que s\u00e3o os D\u00edgitos Verificadores?<\/p>\n<p>\u00c9 aqui que a Matem\u00e1tica entra.<br \/>\nDe maneira geral, D\u00edgitos Verificadores (<strong>DV<\/strong>) s\u00e3o d\u00edgitos incorporados a n\u00fameros para possibilitar a detec\u00e7\u00e3o de erros de digita\u00e7\u00e3o. Recurso muito difundido, por exemplo, na numera\u00e7\u00e3o de contas banc\u00e1rias.<br \/>\nParticularmente, no caso do CPF, os dois D\u00edgitos Verificadores s\u00e3o calculados, a partir da esquerda, da seguinte maneira: <\/p>\n<div class=\"so\">\n<p> <span class=\"c3\">&#9658;<\/span> Os nove primeiros algarismos s\u00e3o ordenadamente multiplicados pela sequ\u00eancia [tex]10[\/tex], [tex]9[\/tex], [tex]8[\/tex], [tex]7[\/tex], [tex]6[\/tex], [tex]5[\/tex], [tex]4[\/tex], [tex]3[\/tex], [tex]2[\/tex] (o primeiro por [tex]10[\/tex], o segundo por [tex]9[\/tex], e assim sucessivamente). Em seguida, calcula-se o resto [tex]r[\/tex] da divis\u00e3o da soma dos resultados das multiplica\u00e7\u00f5es por [tex]11[\/tex]:<\/p>\n<ul>\n<ul>\n<li>se esse resto for [tex]0[\/tex] ou [tex]1[\/tex], o primeiro d\u00edgito verificador \u00e9 zero ([tex]d_{1}=0[\/tex]); caso contr\u00e1rio, [tex]d_{1}=11-r[\/tex].<\/li>\n<\/ul>\n<\/ul>\n<p><span class=\"c3\">&#9658;<\/span> O segundo D\u00edgito Verificador ([tex]d_{2}[\/tex]) \u00e9 calculado pela mesma regra, na qual os n\u00fameros a serem multiplicados pela sequ\u00eancia [tex]10[\/tex], [tex]9[\/tex], [tex]8[\/tex], [tex]7[\/tex], [tex]6[\/tex], [tex]5[\/tex], [tex]4[\/tex], [tex]3[\/tex], [tex]2[\/tex] s\u00e3o contados a partir do segundo algarismo, sendo [tex]d_{1}[\/tex] o \u00faltimo algarismo. Se  [tex]s[\/tex] \u00e9 o resto da divis\u00e3o por [tex]11[\/tex] das somas das multiplica\u00e7\u00f5es, ent\u00e3o:<\/p>\n<ul>\n<ul>\n<li>[tex]d_{2}[\/tex] \u00e9 zero, se [tex]s[\/tex] for [tex]0[\/tex] ou [tex]1[\/tex]; caso contr\u00e1rio, [tex]d_{2}=11-s[\/tex]. <\/li>\n<\/ul>\n<\/ul>\n<\/div>\n<p>Para entender a regra, veja o c\u00e1lculo dos D\u00edgitos Verificadores para o CPF n\u00famero [tex]280.012.389 \u2013 XY[\/tex].<br \/>\n<span class=\"c3\">&#9658;<\/span><strong> C\u00e1lculo para o primeiro D\u00edgito Verificador<\/strong><br \/>\n<span style=\"font-size:13px\">[tex]\\begin{array}{cccccccccccccccccc}<br \/>\n&#038;2&#038;&#038;8&#038;&#038;0&#038;&#038;0&#038;&#038;1&#038;&#038;2&#038;&#038;3&#038;&#038;8&#038;&#038;9\\\\<br \/>\n&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times\\\\<br \/>\n&#038;10&#038;&#038;9&#038;&#038;8&#038;&#038;7&#038;&#038;6&#038;&#038;5&#038;&#038;4&#038;&#038;3&#038;&#038;2\\\\<br \/>\n\\hline<br \/>\n&#038;20&#038;+&#038;72&#038;+&#038;0&#038;+&#038;0&#038;+&#038;6&#038;+&#038;10&#038;+&#038;12&#038;+&#038;24&#038;+&#038;18&#038;=\\boxed{162}<br \/>\n\\end{array}[\/tex]<br \/>\nComo<br \/>\n[tex]\\qquad \\qquad \\begin{array}{c}<br \/>\n162 \\,  \\, \\end{array}  \\begin{array}{|c}<br \/>\n \\,  \\, 11 \\,  \\,  \\\\  \\hline<br \/>\n\\end{array}[\/tex]<br \/>\n[tex]\\qquad \\qquad \\begin{array}{c}<br \/>\n \\,  \\,  \\, 8<br \/>\n\\end{array}\\begin{array}{c}<br \/>\n \\,  \\,  \\,  \\, \\,~~ 14<br \/>\n\\end{array}[\/tex]<\/span><\/p>\n<p>ent\u00e3o, o primeiro d\u00edgito verificador \u00e9 [tex]X = 11 \u2013 8 = \\textcolor{red}{3}.[\/tex]<br \/>\n<span class=\"c3\">&#9658;<\/span><strong>C\u00e1lculo para o segundo D\u00edgito Verificador<\/strong><br \/>\n<span style=\"font-size:13px\">[tex]\\begin{array}{cccccccccccccccccc}<br \/>\n&#038;8&#038;&#038;0&#038;&#038;0&#038;&#038;1&#038;&#038;2&#038;&#038;3&#038;&#038;8&#038;&#038;9&#038;&#038;3\\\\<br \/>\n&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times&#038;&#038;\\times\\\\<br \/>\n&#038;10&#038;&#038;9&#038;&#038;8&#038;&#038;7&#038;&#038;6&#038;&#038;5&#038;&#038;4&#038;&#038;3&#038;&#038;2\\\\<br \/>\n\\hline<br \/>\n&#038;80&#038;+&#038;0&#038;+&#038;0&#038;+&#038;7&#038;+&#038;12&#038;+&#038;15&#038;+&#038;32&#038;+&#038;27&#038;+&#038;6&#038;=\\boxed{179}<br \/>\n\\end{array}[\/tex]<\/span><br \/>\nComo<br \/>\n[tex]\\qquad \\qquad \\begin{array}{c}<br \/>\n179 \\,  \\, \\end{array}  \\begin{array}{|c}<br \/>\n \\,  \\, 11 \\,  \\,  \\\\  \\hline<br \/>\n\\end{array}[\/tex]<br \/>\n[tex]\\qquad \\qquad \\begin{array}{c}<br \/>\n \\,  \\,  \\, 3<br \/>\n\\end{array}\\begin{array}{c}<br \/>\n \\,  \\,  \\,  \\, ~~16<br \/>\n\\end{array}[\/tex]<\/p>\n<p>ent\u00e3o, o segundo d\u00edgito verificador \u00e9 [tex]Y = 11 \u2013 3 = \\textcolor{blue}{8}[\/tex]<\/p>\n<p style=\"margin:20px;\">\n<p>Pronto! J\u00e1 temos o CPF completo: [tex]280.012.389-\\textcolor{red}{3}\\textcolor{blue}{8}[\/tex].<\/p>\n<hr style=\"height:1px; width:100%;background-color:#775077; margin-top: 30px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:6px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:1px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 20px; border: 0 none\"\/>\n<strong>Observa\u00e7\u00e3o:<\/strong> Em um primeiro momento, os D\u00edgitos Verificadores de um CPF servem para alertar que o n\u00famero foi escrito de forma inadequada, sem que haja necessidade de se acessar o banco de dados da Receita Federal. Mas a  valida\u00e7\u00e3o de um  CPF  realizada com base apenas nos D\u00edgitos Verificadores n\u00e3o significa que esse CPF exista no Cadastro Nacional de Pessoas F\u00edsicas e nem que ele seja um n\u00famero ativo ou com situa\u00e7\u00e3o cadastral regular perante a Receita Federal.<br \/>\nAssim, um n\u00famero de CPF autenticado apenas pelos seus D\u00edgitos Verificadores n\u00e3o \u00e9, necessariamente, um documento j\u00e1 emitido ou legalmente v\u00e1lido. Para conferir se um n\u00famero de CPF est\u00e1 ativo ou com situa\u00e7\u00e3o cadastral regular, deve ser consultado o site oficial da <a href=\"https:\/\/servicos.receita.fazenda.gov.br\/Servicos\/CPF\/ConsultaSituacao\/ConsultaPublica.asp\" rel=\"noopener\" target=\"_blank\"><span style=\"color:#9029d7;\"><strong>Secretaria da Receita Federal do Brasil<\/strong><\/span><\/a>.<\/p>\n<hr style=\"height:1px; width:100%;background-color:#775077; margin-top: 20px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:6px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:1px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 30px; border: 0 none\"\/>\n<p class=\"ti3 cv\" style=\"font-size:22px; line-height:35px; margin:40px;\">Vamos fazer algumas atividades?<\/p>\n<div class=\"cbv2 gr1\" style=\"width: 95%\">\n<p class=\"ti2 cv\"><em> ATIVIDADES<\/em><\/p>\n<hr style=\"height:3px;background-color:#6d496d; border: 0 none\"\/>\n<p style=\"margin:50px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 1\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 1';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:45%; text-align:justify; paddding:15px; \">\nO primeiro CPF foi o <strong>000.000.000-01<\/strong>?\n<\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 2\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 2';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:60%; text-align:justify; paddding:15px; \">\nDetermine os DV&#8217;s do CPF que tem [tex]093.412.856[\/tex] como seus nove primeiros d\u00edgitos.\n<\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 3\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 3';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:90%; text-align:justify; paddding:15px; \">\n(ENEM &#8211; Adaptado) Suponha que Jo\u00e3o tenha perdido seus documentos, inclusive o cart\u00e3o de CPF e, ao dar queixa da perda na delegacia, n\u00e3o conseguisse lembrar quais eram os D\u00edgitos Verificadores, recordando-se apenas que os nove primeiros algarismos eram [tex]123.456.789[\/tex]. Neste caso, os D\u00edgitos Verificadores [tex]d_{1}[\/tex] e [tex]d_{2}[\/tex] esquecidos s\u00e3o, respectivamente:<\/p>\n<p>a) 0 e 9.<br \/>\nb) 1 e 4.<br \/>\nc) 1 e 7.<br \/>\nd) 9 e 1.<br \/>\ne) 0 e 1.\n<\/p><\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 4\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 4';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:90%; text-align:justify; paddding:15px; \">\nNa figura, temos a imagem do cart\u00e3o de um suposto CPF.\t<\/p>\n<p style=\"text-align:center; font-size:12px;\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2023\/04\/b019.png\" style=\"border:none\"  alt=\"\" width=\"350\" height=\"268\" class=\"aligncenter size-full wp-image-187565\" \/>Imagem  montada<\/p>\n<p>Supondo o cart\u00e3o verdadeiro:<br \/>\na) Qual o Estado Brasileiro respons\u00e1vel pela emiss\u00e3o do CPF?<br \/>\nb) O primeiro D\u00edgito Verificador est\u00e1 correto? E o segundo?\n<\/p><\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 5\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 5';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:90%; text-align:justify; paddding:15px; \">\nConfirme os DV&#8217;s do seu CPF (ou de algum parente), de acordo com o algoritmo apresentado anteriormente.\n<\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 6\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 6';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:90%; text-align:justify; paddding:15px; \">\nUtilizando as informa\u00e7\u00f5es sobre as regi\u00f5es fiscais nas quais um CPF foi emitido, pe\u00e7a aos seus professores, parentes e vizinhos que mostrem seus respectivos cart\u00f5es de CPF e, olhando o nono d\u00edgito, surpreenda-os afirmando em qual unidade da federa\u00e7\u00e3o eles fizeram suas inscri\u00e7\u00f5es.<\/p>\n<div class=\"gr1 cbv3\" style=\"width:70%; text-align:justify; paddding:15px; \">\n<span style=\"padding-left:20px; color:#f35609;\"><strong>1 &#8211; DF, GO, MS, MT e TO<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#28a428;\"><strong>2 &#8211; AC, AM, AP, PA, RO e RR<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#EE0000;\"><strong>3 &#8211;  CE, MA e PI<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#dbbd1e;\"><strong>4 &#8211; AL, PB, PE, RN<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#28a428;\"><strong>5 &#8211; BA e SE<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#dbbd1e;\"><strong>6 &#8211; MG<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#EE0000;\"><strong>7 &#8211; ES e RJ<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#28a428;\"><strong>8 &#8211; SP<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#dbbd1e;\"><strong>9 &#8211; PR e SC<\/strong><\/span><br \/>\n<span style=\"padding-left:20px; color:#EE0000;\"><strong>0 &#8211; RS<\/strong><\/span>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"margin:60px;\">\n<div style=\"text-align:center;\">\n<input class=\"bo1 cv cbv3\" value=\"Atividade 7\" title=\"Clique aqui\" type=\"button\" onclick=    \"if(this.parentNode.getElementsByTagName('div')[0].style.display != ''){this.parentNode.getElementsByTagName('div')[0].style.display = '';this.value = 'Ocultar';} else{this.parentNode.getElementsByTagName('div')[0].style.display = 'none'; this.value = 'Atividade 7';}\" \/>    <\/p>\n<div  style=\"display: none;\">\n<div class=\"gr1 cbv4\" style=\"width:70%; text-align:center; paddding:15px; \">\n<p class=\"ti2 cv\" style=\"margin:10px;\"><em> Uma investiga\u00e7\u00e3o<\/em><\/p>\n<hr style=\"height:1px; width:100%;background-color:#6d496d; margin-top: 8px; margin-bottom: 30px; border: 0 none\"\/>\n<p>Que tal fazer uma atividade diferente?<br \/>\nEnt\u00e3o re\u00fanam os seus grupos de estudo, cliquem no bot\u00e3o abaixo e<\/p>\n<p class=\"ti2\">Bons estudos!<\/p>\n<p style=\"margin:40px;text-align:center;\">\n<a href=\"http:\/\/clubes.obmep.org.br\/blog\/?p=130372\" title=\"Ir para a Sala da Atividade.\" target=\"_blank\"><span class=\"buts2 bbgv\" > Ver a atividade<\/span><\/a><\/p>\n<p style=\"margin:30px;\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"margin:20px;\">\n<\/div>\n<hr style=\"height:1px; width:30%;background-color:#6d496d; margin-top: 40px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:1px; width:50%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:70%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:80%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:80%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:70%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:1px; width:50%;background-color:#6d496d; margin-top: 8px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:1px; width:30%;background-color:#6d496d; margin-top: 8px; margin-bottom: 30px; border: 0 none\"\/>\n<div class=\"gr1 cbv1\" style=\"width:95%\">\n<p class=\"ti1 cv\"> Aparatos para ajudar<\/p>\n<hr style=\"height:3px;background-color:#6d496d; border: 0 none\"\/>\n<p style=\"margin:40px 50px 10px 50px;\">\nDisponibilizamos tr\u00eas Maquinetas para ajudar nas atividades propostas nesta Sala.<br \/>\nMas lembre-se de que este \u00e9 um  ambiente de aprendizado de Matem\u00e1tica; assim, as sequ\u00eancias aleat\u00f3rias cujos d\u00edgitos verificadores s\u00e3o autenticados pelo algoritmo aqui apresentado n\u00e3o s\u00e3o, necessariamente, CPF&#8217;s de documentos regulares junto \u00e0 Receita Federal.<br \/>\nDe toda forma, <\/p>\n<p class=\"ti2 cv\" style=\"margin:10px 10px 40px 10px\">Bom proveito, pessoal!<\/p>\n<hr style=\"height:2px; width:100%;background-color:#6d496d; margin-top: 10px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#6d496d; margin-top: 8px; margin-bottom: 40px;border: 0 none\"\/>\n<div class=\" g1n cbv1\" style=\"width:80%; margin:30px; text-align:justify; font-size: 14px;\">\n<strong>Instru\u00e7\u00f5es:<\/strong> Para cada Maquineta:<br \/>\n1) Clique no link da <span style=\"color: #616161; font-family: georgia; font-size: 16px;\"><strong>Maquineta<\/strong><\/span> desejada e fa\u00e7a o download do arquivo.<br \/>\n2) <strong>Abra o arquivo no <em>Excel<\/em>.<\/strong><br \/>\n3) Observe se a planilha est\u00e1 no Modo de Exibi\u00e7\u00e3o Protegido. Em caso positivo,  habilite a Edi\u00e7\u00e3o antes de usar a Maquineta.<\/div>\n<p style=\"margin:50px \">\n<div class=\"cbv5\" style=\"text-align:center; width:95%; margin-left:auto; margin-right:auto\">\n<p class=\"tis1\" style=\"margin:20px;\">Maquineta para calcular D\u00edgitos Verificadores de CPF&#8217;s<\/p>\n<table style=\" height:auto; margin-left: auto; margin-right: auto; width: 550px;\">\n<tr class=\"bf\">\n<td style=\"border: 1px solid #ffffff\">\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1001 alignright\" style=\"border: 0px;\" alt=\"\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2013\/01\/menino.jpg\" width=\"80\" height=\"97\" \/><\/td>\n<td  style=\"border: 1px solid  #ffffff\">\n<p style=\"text-align: justify; padding: 15px; border-style: dotted; border-color :#1C1C1C; border-width :thin; width:420px;background-color: #e8dde8; margin-left: auto; margin-right: auto;\"><span style=\"color: #616161; font-family: georgia; font-size: 16px;\"> Com esta maquineta \u00e9 poss\u00edvel calcular os dois D\u00edgitos Verificadores de um CPF, conhecidos os seus nove d\u00edgitos iniciais. (*)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 30px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 20px;border: 0 none\"\/>\n<p><a href=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/07\/CPF-Maquineta1.xlsx\"><span style=\"color: #616161; font-family: georgia; font-size: 20px;line-height: 16px;\"><strong>Maquineta 1<\/strong><\/span><\/a><br \/>\n<span style=\"font-size: 14px;\">OBMEP_ srdg<\/span><br \/>\n<span style=\"color: #616161; font-family: verdana; font-size: 12px;line-height: 11px;\">A maquineta funciona adequadamente no Excel.<\/span><\/p>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 50px;border: 0 none\"\/>\n<\/div>\n<hr style=\"height:1px; width:20%;background-color:#6d496d; margin-top:  30px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:40%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:3px; width:50%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:3px; width:50%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:40%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:1px; width:20%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 30px; border: 0 none\"\/>\n<div class=\"cbv5\" style=\"text-align:center; width:95%; margin-left:auto; margin-right:auto\">\n<p class=\"tis1\" style=\"margin:20px;\">Maquineta para verifica\u00e7\u00e3o da digita\u00e7\u00e3o de CPF&#8217;s<\/p>\n<table style=\" height:auto; margin-left: auto; margin-right: auto; width: 519px;\">\n<tr class=\"bf\">\n<td style=\"border: 1px solid #ffffff\">\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1001 alignright\" style=\"border: 0px;\" alt=\"\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2013\/01\/menino.jpg\" width=\"80\" height=\"97\" \/><\/td>\n<td  style=\"border: 1px solid  #ffffff\">\n<p style=\"text-align: justify; padding: 15px; border-style: dotted; border-color :#1C1C1C; border-width :thin; width:400px;background-color: #e8dde8; margin-left: auto; margin-right: auto;\"><span style=\"color: #616161; font-family: georgia; font-size: 16px;\"> Com esta maquineta \u00e9 poss\u00edvel detectar se os d\u00edgitos de um CPF foram corretamente digitados.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 30px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 20px;border: 0 none\"\/>\n<p><a href=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/CPF-Digita\u00e7\u00e3o.xlsx\"><span style=\"color: #616161; font-family: georgia; font-size: 20px;line-height: 15px;\"><strong>Maquineta 2<\/strong><\/span><\/a><br \/>\n<span style=\"font-size: 14px;\">OBMEP_ srdg<\/span><br \/>\n<span style=\"color: #616161; font-family: verdana; font-size: 12px;line-height: 11px;\">A maquineta funciona adequadamente no Excel.<\/span><\/p>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 50px;border: 0 none\"\/>\n<\/div>\n<hr style=\"height:1px; width:20%;background-color:#6d496d; margin-top:  30px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px; width:40%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:3px; width:50%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:3px; width:50%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:40%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:1px; width:20%;background-color:#6d496d;  margin-top: 8px; margin-bottom: 30px; border: 0 none\"\/>\n<div class=\"cbv5\" style=\"text-align:center; width:95%; margin-left:auto; margin-right:auto\">\n<p class=\"tis1\" style=\"margin:20px;\">Maquineta que exibe os c\u00e1lculos dos D\u00edgitos Verificadores<\/p>\n<table style=\" height:auto; margin-left: auto; margin-right: auto; width: 560px;\">\n<tr class=\"bf\">\n<td style=\"border: 1px solid #ffffff\">\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1001 alignright\" style=\"border: 0px;\" alt=\"\" src=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2013\/01\/menino.jpg\" width=\"80\" height=\"97\" \/><\/td>\n<td  style=\"border: 1px solid  #ffffff\">\n<p style=\"text-align: justify; padding: 15px; border-style: dotted; border-color :#1C1C1C; border-width :thin; width:390px;background-color: #e8dde8; margin-left: auto; margin-right: auto;\"><span style=\"color: #616161; font-family: georgia; font-size: 16px;\"> Se voc\u00ea est\u00e1 com dificuldades para calcular os D\u00edgitos Verificadores de CPF, utilize a Maquineta 3. Com ela voc\u00ea poder\u00e1 acompanhar, passo a passo, os c\u00e1lculos necess\u00e1rios para a determina\u00e7\u00e3o dos dois D\u00edgitos Verificadores de um CPF, conhecidos os seus nove d\u00edgitos iniciais.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 30px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 20px;border: 0 none\"\/>\n<p><a href=\"http:\/\/clubes.obmep.org.br\/blog\/wp-content\/uploads\/2019\/06\/CPF-Passo-a-passo.xlsx\"><span style=\"color: #616161; font-family: georgia; font-size: 20px;line-height: 20px;\"><strong>Maquineta 3<\/strong><\/span><\/a><br \/>\n<span style=\"font-size: 14px;\">OBMEP_ srdg<\/span><br \/>\n<span style=\"color: #616161; font-family: verdana; font-size: 12px;line-height: 11px;\">A maquineta funciona adequadamente no Excel.<\/span><\/p>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 8px;border: 0 none\"\/>\n<hr style=\"height:2px; width:100%;background-color:#775077; margin-top: 8px; margin-bottom: 50px;border: 0 none\"\/>\n<\/div>\n<hr style=\"height:2px;background-color:#6d496d;  margin-top: 50px; margin-bottom: 8px; border: 0 none\"\/>\n<hr style=\"height:2px;background-color:#6d496d;  margin-top: 8px; margin-bottom: 15px; border: 0 none\"\/>\n<p style=\"text-align: right;\"><span style=\"color: #6d496d; font-size: 20px;\"><strong>Equipe COM &#8211; OBMEP<\/strong><\/span><\/p>\n<\/div>\n<p class=\"fim\"><a title=\"Voltar.\" href=\"http:\/\/clubes.obmep.org.br\/blog\/?p=130365\"><span style=\"color:#9029d7; font-size:14px\"><strong>Voltar para Sala Inicial<\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Matem\u00e1tica dos CPF&#8217;s Toda pessoa que se inscreve no Cadastro de Pessoas F\u00edsicas da Receita Federal do Brasil recebe um n\u00famero de inscri\u00e7\u00e3o de onze d\u00edgitos decimais com a seguinte configura\u00e7\u00e3o: ABC.DEF.GHI-JK. Os primeiros oito d\u00edgitos, ABCDEFGH, formam o n\u00famero-base definido pela Receita Federal no momento da inscri\u00e7\u00e3o. O nono d\u00edgito, I, define a &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/clubes.obmep.org.br\/blog\/a-matematica-nos-documentos-a-matematica-dos-cpfs\/\">Continue lendo<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-onecolumn.php","meta":{"footnotes":""},"class_list":["post-187507","page","type-page","status-publish","hentry","nodate","item-wrap"],"_links":{"self":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/187507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/comments?post=187507"}],"version-history":[{"count":6,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/187507\/revisions"}],"predecessor-version":[{"id":187510,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/187507\/revisions\/187510"}],"wp:attachment":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/media?parent=187507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}