Question

1) resolva as expressões a seguir :

a) ( 45 - 9 ) ÷ ( 30 + 21 ) + ( - 8 ) =

b) ( - 6 ) - ( - 32 - 22 ) ÷ ( 19 - 10 ) =

c) ( -67 + 23 ) ÷ ( - 4 ) + ( - 13 + 11 ) =

d) 28 ÷ ( 79 - 93 ) + ( - 65 - 31 ) ÷ ( 18 - 42 ) = ​

Answer 1

Resposta:

vou pesquisar e tir aviso