Question

08) calcule

a) (-41)÷(+5)=
b) (-120)+(-20)=
c) (-72)÷(-8)=
d) 19-(-20)÷(-2)=
e) (-56)÷(+8)+(-49)+(-7)=
f) 50-72+(+2)=
g) (-38)+(+2)+(-42)+(-3)=​

Answer 1

Resposta:

$a)\\ (-40)\div(+5)=-8\\ \\ b)\\ (-120)+(-20)=-120-20=-140\\ \\ c)\\ (-72)\div(-8)=+9\\ \\ d)\\ 19-(-20)\div(-2)=\\ 19-(+10)=\\ 19-\\ 10=9\\ \\ e)\\ (-56)\div(+8)+(-49)+(-7)=\\ -7-49-7=-63\\ \\ f)\\ 50-72+(+2)=\\ 50-72+2=\\ 52-72=-20\\ \\ g)\\ (-38)+(+2)+(-42)+(-3)=\\ -38+2-42-3=\\ -83+2=-81$