Question

10 Calcula
a) (2 - 10) - [5 - (8+2)]
b) (12 - 3) - [1 - (2-6)]
c) [9 - (+5)] + [7+ (-10)]
d) [(10 - (-2)] - [5 - (+12)]
e) [8 - (6+4)] - (5 - 7)
f) [1 + (6 - 9)] - (8-12)​

Answer 1

Respuesta:

a) -3

b) +14

c) +1

d) +5

e) -4

f) +2

Answer 2

Respuesta:

a) (2-10) - [5-(10)]

(-8) - (5 -10)

-8 - ( -5)

-8 + 5 = -3

b) (12-3) - [1- (-4)]

9 - ( 1 +4)

9 - 5 = 4

c) (9 - 5) + (7 - 10)

4 + (-3)

4 - 3 = 1

d) ( 10 + 2 ) - ( 5 -12)

12 - ( -7)

12 + 7 = 19

e) ( 8 - 10) - ( -2)

-2 + 2 = 0

f) ( 1 - 3 ) - ( -4)

-2 + 4 = 2

Explicación paso a paso:

+(a) = +a/a

+(-a) = -a

-(a) = -a

-(-a) = +a/a