Viagem de ônibus

Synopsis: material for the teacher to work with students. Presents many paths leading a bus to your final destination. At each stop rising (add operation) and down (subtract operation) people. You need to analyze and interpret this situation to answer the questions posed.
Source: MDMat.
URL: http://objetoseducacionais2.mec.gov.br/bitstream/handle/mec/19636/viagem_onibus.pdf?sequence=1