Complete as igualdades A) 5 +(2+3)=(_ +2)+3 B)7+(6+4)=(7+6)+_ C)2+(_+5)=(_+1)+5 D)8+(9+_)=(_+9)+3 E)_+(2+1)=(5+_)+_
Complete as igualdades A) 5 +(2+3)=(_ +2)+3 B)7+(6+4)=(7+6)+_ C)2+(_+5)=(_+1)+5 D)8+(9+_)=(_+9)+3 E)_+(2+1)=(5+_)+_ F)a+(b+5)=(_+_)+c G)(5+3)+7=5+(_+_)
1 Resposta
5+(2+3)=(5+2)+3 espero ter ajudado
