Question

Determine o valor de cada expressão numérica
A) 19-(-20)÷(-2)=
B)(-56)÷(+8)+(-49)÷(-7)=
C)50-72÷(+2)=
D)(-38)÷(+2)+(-42)÷(-3)

Answer 1

A) 19-(-20)÷(-2)=

19-(10)=9

B)(-56)÷(+8)+(-49)÷(-7)=

-7+7= 0

C)50-72÷(+2)=

50-36= 14

D)(-38)÷(+2)+(-42)÷(-3)

-19+14= -5

Answer 2

A) 19-(-20)÷(-2)=

19-(10)=9

B)(-56)÷(+8)+(-49)÷(-7)=

-7+7= 0

C)50-72÷(+2)=

50-36= 14

D)(-38)÷(+2)+(-42)÷(-3)

-19+14= -5