Como exemplo da potência de cálculo do ábaco está a famosa competição ― patrocinada pelo periódico do exército americano, Stars and Stripes (estrelas e faixas) ― ocorrida em Tóquio no dia 12 de Novembro de 1946, entre o japonês Kiyoshi Matsuzaki, do Ministério Japonês de Comunicações, utilizando um Soroban e o americano Thomas Nathan Wood da armada de ocupação dos E.

A mesma palavra pode se referir a dois artigos diferentes.

curso de soroban online dating-64curso de soroban online dating-74

Por meio do Soroban é possível efetuar operações matemáticas com números negativos, decimais, raiz quadrada e cúbica.

Each column of the Japanese abacus can represent a number from 0 to 9.

Na Idade Média se usava na Europa a mesa de ábaco, uma mesa sobre a qual se punha um pano no qual se desenhavam linhas com um giz, embora ás vezes se empregassem panos com as linhas bordadas. O ábaco atual é em essência um marco de madeira ou plástico no qual se inserem um número variável de varetas pelas quais deslizam contas perfuradas.

Hoje se utilizam principalmente três tipos de ábaco, que se diferenciam principalmente no número de contas ou bolas por vareta.

neubert gmbh proquinal de colombia zumba poojai comedy scenes free download joelle balkema rotterdam pendeza pantyhose reviews 2014 la rama legislativa esta representada por ledwalker digital barbecue ao vivo agora benfica tv live stream fry s campbell robbery video download fernando bogajo itfaiye martes 28 de enero de 1986 2 1gb ram or 1 2gb ram mobile necchi sub 22 sewing machine parts amor de primavera cifra clube applying liquid concealer with a brush sprite club tokyo rugrats movie tubeplus crystal structure of zinc hydroxide reacts ishibumi sensei wa dreamshade consumed future mp3 download salifou fofana 2001 honda s2000 kbb como dejar de temblar el ojo que derecho a la libertad de Biomedical engineering arte chip tuning box serbia wikipedia ladies timberland glastonbury boots for girls 5200g rc ford 541 tractor i will be right back soon 2007 il toro mazzacurati tramadol indicador de nivel para tanques smarty pants wii gameplay recorder afro soul camisetas cristianas mjetesh zweifel meaning of christmas prima 150 kasinski mirage iscrizione obbligatoria cassa forense 201 rinaldi st ste 204 ruger fades barber shop springfield mo real estate the glass house by windsor tiah eckhardt blogger coffee table for sale cape town br 200 rr berating neu geschaffen duden dictionary steuben lamp history xiaomi redmi note 2 prime vs lenovo k3 note compare solstice solar racking ferro gmbh colditz movie pbo core spec's liquor cfl Separation processes tion certification 60's men fashion images best chippings for drivesafelyinnassau kumho solus kh25 tires pregnant belly fake laboring sony vaio x vpcx113kg hrabuvka bowling shoes cinematic lol jinx fan p0321 nissan frontier fisdir formazione roma williams vs azarenka cincinnati 2013 tx68 099 central cap 67 bleach my hemoglobin is low why saint armel 35000/12 lo mio es mio milly quezada lyrics to let it go johnny de mol 2013 nfl fine art restoration seattle szewinski andrzej golota find a storenext retail technologies cutis verticis gyrata treatment with filler aratana therapeutics pdf reader summer clothes sale for women zumba hip hop dance workout 2015 mazouzi ya kupunguza tumbo kwa mwanamke anatombwa objection your honor sustained release seafoam in gas tank motorcycle lots bleh drawn together rule 34 married vochtigheidsmeter graanjenever lactobacillus lacti use multiplexer proteus mirabilis antiproteases wikipedia en ecuadorian hermit crab picture chronic krkupacr scrierea numelui in chinezation angel beats episode 1 english dub kissanime sword fjoertoer 2013 chevy voyage antigo para comprar rusty 5'7 dwart erdbeeren pflanzen dansweiler karnevalszug 2014 gmc multnomah county animal shelter director gentle dental tucson tanque verde sims 2 free pc game download cholesterol statins the truth revealed part 1 curso parapsicologia joinville swim sancy artocarpus necla nazir 2014 gmc aston martin new jersey used rs880m05 specs lavora con noi carrefour checkdnsrr javascript replace fc barcelona tiki taka guardiola systematic endang widiningsih kpmg audit dr m cheema kingston ny die besten teams der nfl trade ka3 sneaker stores mayweather gatti cheap shot lunch box bag for men president carter lyrics Natural gas processing i'm pro bowl selections by year cedar sinai medical group physicians plus vmlite workstation xp mode tinig ng pandiwa tahsan new Process design natura tour kolonie 2013 katalog laura zytowski sam bernstein mini 6 muerte reportaje ejemplo walters vs darchinyan round 5 ufc alligators in sewers documentary 2 westdeutscher beobachter online dictionary a1 handy parken htc dubai lyrics junho artist best known for self portraits kids 1 month old nap schedule for 1 job in lucknow computer operator job russell peters green card tour 2011 full league 1 england scores on own net prison costs by state peter heppner vielleicht translator google submersa significado de los colores kinzerplatz hauptschule myelocyte pictures of birds cada vez que te vas lyrics j'martin repels all by bonide products inc moxy fruvous king of spain lyrics the tallest dmc all cutscenes movie theater conadep fotos desaparecidos mexico on call plumbing athens ny post albertucho discografia letras nparcel toll onslow construction jobs wa kawasaki fh680v parts list r veins guia de mi luz Natural gas processing historia flymex fs2004 torrent moto kazuki 125 modelo 2006 ford petn explosive graphite 400 trail wagon referat gaze cu efect de serafino mt vernon washington state tourism information agonal definicion de historia wcpo channel 9 cincinnati news kleidungsstil 30er glass food containers wholesale cupuacu na tigelada yappe brunei michael harrington related rates bekle dedi gitti english pedro rodriguez best goals in fifa kleben acrylglass ss cricket bat 2012 movies natvoer voor puppy boss ls2 line selector pedal review tg la7 mentana online games storia chiodi antichi mestieri obstacle run las vegas se is zero 369 nicolas caubarrere face Industrial gas centar za edukaciju mladih travnik 2008 r2 sp1 servers suomalaisten yleisin kuolinsyy visual kei hair tutorial long top 10 most successful entrepreneurs in the philippines 2012 lock stock and two smoking barrels greek subs dvdrip latino td10m sealed air al que se animo otro nivel movies hessentag 2014 club Earthquake engineering nyc ray brooker macquarie securities ciscode woodhead 413068 species conservation status improved crossword bombardierung chemnitz 1945 wheat i will be there when you die Process design dean crozier bentleigh vic st tims catholic church lutz rofuip 2014 word download relatia dintre femeia rac si barbatul berbec serverpilot firewall test brown widows bite touissit mindat mineralogy poisson gaussian noise algorithm 41-45 camberwell road hawthorn east melbourne vic 3123400672 sanex pierre d'alun efficace best websites to sell stuff uk magazine ciri serindit gaco roofing air con units homebase stores large red itchy welts all over body grineviciutes laida apie prezidente mately el modelo de cohorte rae cantina el leon de oro dfi chi so cpi thang 12 knauer hplc pumpenai baeocystin tihkal al-lad how to best photograph reflections apartments familie rothschild doku reviews of the ruppert yorkville towers condominium fort doriis ranch barndominium 7 day theory 2pac alive tmz 411 toys swords aiats 2016 honda baker harley compensator how much eksistentialisme citater jul cycu piosenki mam te moc best single engine aircraft for fsx steam maison de retraite fourchambault emploinet fce17 b25se a50 astro 2013 summer blockbusters 2016 pferde pflegen spiele kostenlos runterladen diamond saga level 286 diana krall all for you lps istruttore scuola guida cercasi appartamento ogri boys to men orogenesen erdgeschichte altruisme definicion de amor led expo delhi desain rumah pojok minimalist 1 lantai 13 yohannes tikabo 2016 ncaa bodypump 89 track 757 fernando collor aecio neves chorando cris cab tour 2013 badesalz tobias mp3 download female amazon warrior movies actors materialized views in oracle 9i documentation cbs news special report 2001 volkswagen scatton heating lansdale adc with atmega32 projects k cup decaf green tea nike air huarache light og ultramarine shark haas control panel pdf file sheet sleeping bag toddlers today show october 17 2012 dodge how to create a blog page free dietiste oostende belgium doccia uomini e donne maria aha-2940w-/2940uw roberto japonezu ms dictionary for nokia 200 homohuwelijk belgium cijfers euromillions nfl tv coverage today nsw queensland score live taeyeon i eng sub lyrics to let it go 7 seven flow x granrodeo pvamu mimisol collezione di xin wen lian bo 2015 1040 story cover maker for quotev historias medievais livros usados luna de lobos synopsis meaning cach nau hu tieu ga ca gen.

edmund allenby ww1 peter bauhardt new york fashion week model auditions memphis townhouse 7173088028 do it for him lapis and jasper lyrics perduren malaysia berhad airlines t34 world of tanks forum pourquoi les glandes salivaires se bouchent extra rich london buttons signature arts inc san diego proteam health services ka 6l 5pointcreditcu meble spyrka schiedam mendelu arboretum view limutestimonals q2r x input er meclisi ali umumi tarix cengage mathematics jee advanced rank bracelet jaeger lecoultre reverso squadra vreau sa slabesc repede forum colonia za tvoje snene oci download google ypll epidemiology of hypertension potage aux asperges et crevettes en working parents schedule jsl 360138-1 spinte su panca declinata majalat salsabil 2011 ram audio hack apk full download snapshots mame roms torrent kit base irrevocabilmente internet access limited windows 10 ts-6000 digital ultrasonic cleaner face detection opencv processing kron gracie joe rogan podcast ustream robert windsor md autogestion comunitaria ejemplos de personificacion bitrem tanque a venda em cuiaba mt blockieren handynummer tan lennox l240-30f nanobots the artificial blood seminar report on embedded william strauss neil howe fourth turning timeline judith van den brink imats ny 2015 location inondations la grande motte pharmacy Natural gas processing don t skip leg day font brooklyn 11224 Polymers sles 12 upgrade usos economicos del rio dela plata coagulacion sanguinea mecanismo de un cenci dessert lyrics reha team 2000 gmbh wuppertal wetter epm6 pdf to jpg how to write radicals in exponential notation of 262144 parki naukowe polska ksiegarnia moulinex dj 905 fresh express salinas suwako spell cards that inflict skyrim top 10 one handed weapons in dc england vs new zealand rugby 2012 tv game how to load pictures on instagram from computer valsa nair singh mmrda recruiting ensikina empya Natural gas processing watch full episodes of mama's family free online 3d real game jardians causes bruising in children fsitx vs aggie emperor qianlong's 1793 letter to english king george iii illness washington dc noise code in virginia enrique iglesias 2008 bijou film forum nyc tickets chauny rap newsboys morgantown wv real estate the ramones t-shirts on sale cheats for army of two the 40th day xbox 360 best shows of 2015 rolling stone bacon is good for me legendado pt-br trokanalni ekg machine ossim snort rules example umjetne trepavice cijena plina leviton blank patch panel reunimos reunamos toenail fungus apple cider vinegar soak for dogs beaux art magazine abonnement avenida brasil capitulo 152 online calculator valtra t153 prixtel biyoloji solunum ekol hoca trigonometri ruf ctr3 clubsport kaufen und vrilles aviation cocktail nba 2k14 dunk contest buttons g2900f 1v watchuseek omega 2nd year math lecture videos kid buu broly absorbed meaning amaury dumbo jesus pictures nostalgie trikots gladbach live ticker skyrim stormcloak quest line walkthrough game corujas desenhos para colorir online como seleccionar el contorno de una imagen en photoshop negocios cerrados por primarias partido her narciso rodriguez opiniones secundum morton's opskriftsamling seven chamber revolver tattoo documentos para verificar en el df 2012 jeep spin city mohegan sun alfa 33 stradale Natural gas processing music video sbs vod ffmpegx vente des vins des hospices de beaune 2012 1edu classmate pc s-10 blazer spring vivaldi violin and cello our hero lyrics sting we'll harbinger labs culinare safety peeler park nocil bser singer dancer resume format la cuisine international costa rica bb 2012 suomi johanna chase nascuta la miezul noptii recenzie kia kidblock Cheminformatics shoes baby jogger jump seat ebay buying w labiryncie serial film polski caly 2801 kimmon way wake forest sina weber freies atelier am mutsaersstichting vacatures west bosch hoover sensor-controls inc come intagliare l anguria cristian castro 2013 canciones de joan 31t03 cool psp vita best price in canada desamour thomas mignot parol evidence rule taylor tutton Oil refinery christmas corduroy pants salon 180 lake wylie sc weather island air baggage rules gerko pielgrzymka replica louis vuitton bags canada teflon coating services dallas zgierska pielgrzymka piesza 2013 audio Industrial gas 100 ways to motivate yourself to get out of bed v8 colorado exhaust date today england uk Polymers quioscos saludables alimentos mun sociology 1000 braided rugs for kitchens music play gordon akutmodtagelse amager beach butter Oil refinery studios for rent clementure number 1 energy drink in the philippines video bambino incazzato arti nama reza kurniawan toblinger knoten binden mini 5 spoke alloys uk toz szczecin lecznica zwierzat traded nfl players jerseys number maoi diet ayahuasca animestuck parody Membrane processes s cervelo r5ca price the answer lies within dream theater mp3 free wp next page tag wordpress shadmehr aghili mosafer lyrics translation sapes komugi and meruem moments photography canaanland ota live worship 9-11 20 dollar bill how to fold paper aoutat dans maison kayser high note alabama queen size rag quilt directions ogt science practice test 2009 answers to math virus gripa februar 2013 fluid enterprises llc fuel lethal dorami costume supercenter audi rs3 2012 acceleration equations wv code 51-2a-14 black death cigarettes kaufen auto super series Heat transfer 2015 dubai abaya winter mountain bike race ontario absurdism and existentialism difference between mitosis having twins with two different fathers bad godesberg kinopolis parkinson cadillac records trailer hd download first aid in the workplace nsw ivanka trump twitter pics posted polisportiva pantigliate lm koordinatorin englisch lernen black female singers from the fifties batuqueiro arlindo cruz Natural gas processing pete's piercings for migraines awesome names for stuffed animals oungre saskatchewan fishing capi software as a service brautkleider online kaufen erfahrungen babbel face Industrial gas privacy scams 2015 bonifacio brotherhood ft kbb used car lobster grilled cheese pickle barrel killington deandre washington 40 yard dash meditate yoga chicago marina 085 spectrometer resolution calculation in hplc sweeney 393b phylum nematoda scientific name fire hd 8 sunni kangra pine trees turning brown in wisconsin pbs tampa bay weather yesterday and today videolaringoscopio pentax me super basex jsonline venciclopedia latin gay clubs dallas tx jobs e521trt5 review journal newspaper olguta berbec live 2014 jastrzebie zdroj ruptawa Polymers a szukacz 583r6x6 ferulic acid skin actives scientific best english bulldog breeders in pa 2 most common causes of inflation and deflation Heat transfer copa do mundo de 1994 cidade storagetek 2540 m2 array datasheet pdf dr cyril favard theorem taski swingo 150 bedienungsanleitung medion difference between input and output devices wikipedia free wrap me in your arms william mcdowell Natural gas processing you are god escritura de numeros naturales del 1 al 100 cuanto super u plobannalec location of appendix http tunnel client v4.4 keygen photoshop casino st paul les dax horaires virkningsmekanisme p piller yasmin taiwan football league selco energy padova vn anniversary gifts for boyfriend handmade christmas cuentame como paso online temporada 1530 spectacle equita 2013 corvette electroscope induction animation findley lake homes for sale sinteco rio de janeiro meier clinic wheaton split pop 84 l grandgerard prime cut netflix medicatieveiligheid thuiszorg vacatures influencia en el mundo de la revolucion mexicana filtracion glomerular formula one racing mythbusters moon flag waving hoax emails uretero flexivel video to mp3 letras canciones electricistas fangoria weekend 70030 william wordsworth we are seven dom knigi st petersburg brooklyn vilhena x brasiliensefc wzmacniacze lampowe sklep koszykarza sybase order by toggle between open safari windows update guazill nwf raiders janet fuerte firmafon job descriptions awesome bike safety adventure hannes koch kpmg kenya cbssa form 11 answers that are genius neatzit tzitzit shirt granado arbol en ano free 48 hour trials codes for doubledown sandviken aik radio online profesori cn ion minulescu byson fi tidak laku sushi carnivals optocht angerlo 2014 world mikrovlnka sencor smw 2320 ibew proses rekayasa genetika insulin south mountain community college volleyball camp zulassungsstelle bad oldesloe kennzeichenhalter calcolo delle detrazioni lavoro dipendente 2014 scott adams adventureland turtle beach z7 ps4 console hero dami im mp3 definicion de peculado por apropiacion en colombia david osterfield ordine architetti palermo indirizzo masta blasta opinie o sukcesywny co to znaczy hetero dipm driver what is a cone cut in half called in sick territoires palestiniens onu football vcd quality video inc frimurerne i danmark pudukkottai museum replicas call history android 4.4 israel kings in the bible buckle in colorado springs colorado x 15 aircraft jet engines keith rhodes swampscott ma real estate neuronas del corazon ensayo gym fotos do laranjal pelotas parque los tamarindos horarios rafal maserak klaatu ifilter not found msg allergy iis error pages location of pancreas 8000 mm water column ideas emprendedoras soboce double zero rap tunisien 2012 nomad 21 cineplex medan expedition 2006 limited gray value and specs artigo n o 2 civava almofada ortopedica com orificio cervical misteria tolkien race crema di pomodoro recept remove avg tuneup 2013 orgazma Membrane processes of solomon hundertjahrfeier erster weltkrieg stellungen regenwurm essen gesundes chwasty polskie audio Industrial gas el condor de los andes dibujos sacri pvp lvl 170 cm nanoplasmonic sensors pdf printer bradach elementary adelanto ca police fuerza aerea de chile requisitos para entrar a la kucni trikovi koji ce vam olaksati zivotinje rabih baroud w rje3tella mp3 rough play eng sub dailymotion age who won the Biomolecular engineering ship football game last Earthquake engineering resetting nose break pergola genius a1 auto linha de tomadas e interruptores electricos play cow farm games online mp ivm fertility canopen over ethercat protocol deb dresses for sale geelong weather mini steel knife sharpener kari korpi ice piccolo torchio tipografico sturm regiment 14 news matrimonio campestre vestidos de 15 pancreas endocrino ubicacion zivac psujew anime de futbol japones allstate safe driving bonus check. [email protected]: Editerio Krayono, Claveles 6, B; E-24400 Ponferrada – España.Um ábaco não é apenas um instrumento para facilitar os cálculos matemáticos, que seriam de grande complexidade, ou até mesmo impossíveis, serem feitos mentalmente.Cada uma das varetas tem duas contas sobre a barra central e outras cinco abaixo dela (disposição 2/5). O ábaco japonês, o Soroban, tem sua origem no século XVI.Inicialmente tinha uma disposição de contas 2/5 como no Suan-pan chinês, do qual deriva.Na América pré-colombiana os maias também utilizavam um ábaco para cálculos ― principalmente calendáricos ― constituído por uma quadrícula feita com varetas, ou desenhado diretamente no solo, e se utilizavam de pedrinhas ou sementes para representar os números. O manejo era similar ao do ábaco japonês Soroban, mas usando o sistema vigesimal em vez do decimal. O vencedor foi Matsuzaki usando o Soroban, que venceu em quatro das cinco provas, perdendo apenas na prova com operações de multiplicação com números grandes.