FRAÇÕES
http://www.tsampaio.com/ic/index.html
FRAÇÕES EQUIVALENTES
http://www.mathplayground.com/Triplets/Triplets.html
COMPLETANDO 1 INTEIRO
http://www.mathplayground.com/number_bonds_fractions.html
ASSOCIE FRAÇÕES
https://phet.colorado.edu/sims/html/fraction-matcher/latest/fraction-matcher_pt_BR.html
http://www.tsampaio.com/ic/index.html
FRAÇÕES EQUIVALENTES
http://www.mathplayground.com/Triplets/Triplets.html
COMPLETANDO 1 INTEIRO
http://www.mathplayground.com/number_bonds_fractions.html
ASSOCIE FRAÇÕES
https://phet.colorado.edu/sims/html/fraction-matcher/latest/fraction-matcher_pt_BR.html