div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader039vdocumentspubreader039viewer20220318045bba77c409d3f2d6198b5316html5page1jpg target=_blank img data-url=s-operacoes-com-numeros-racionais-adicao-e-subtracao-operacoes-comhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: sistemadeensinofuturocombrsistemadeensinofuturocombrwp-contentuploads201501matematica · Operações com números racionais: adição e subtração Operações com números loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader039vdocumentspubreader039viewer20220318045bba77c409d3f2d6198b5316html5thumbnails1jpg width=140 height=200 adivdiv