Question

• Ejemplo: (5 - 12) -(8-6) = (-7) - (+2) = -7 - 2 = -9
a) (7-4) + (9-5) =
b) (2 + 6) + (5 - 8) =
c) (5--9) + (2 - 12) =
d) (7 + 3) - (5 + 4) =
e) (8 - 12) - (2-5) =
f) (10-7)-(-2-6) =
g) -(8 + 4) + (5-9) =
h) -(6-2)-(7 - 9) =​

Answer 1

Respuesta:

a) (7-4)+(9-5)= (+3)+(+4)= 3+4= 7

b) (2+6)+(5-8)= (+8)+(-3)= 8-3= 5

c) (5-9) +(2-12)= (-4)+(-10)= -4 -10= -14

d) (7+3) -(5+4)= (+10)-(+9)= 10-9= 1

e) (8-12)-(2-5)= (-4)-(-3)= -4+3= -1

f) (10-7)-(-2-6)= (+3)-(-8)= 3+8= 11

g) -(8+4)+(5-9)= -(+12)+(-4)= -12-4= -16

h) -(6-2)-(7-9)= -(+4)-(-2)= -4+2= -2