Question

Calcula eliminando los paréntesis cuando sea preciso.
a) (+3) + (- 4) + (- 5) =
b) (-6 ) + (-12) + (-1) =
c) (+3) + (+21) + (-15) =
d) (-5 ) + (+7) + (- 12) =
e) (+14) + (-9 ) + (- 7) =
f) (-12 ) + (- 6 ) + (+3 ) + (-1) =
g) (+5 ) + (-3 ) + (+14 ) + (-2 ) + (- 11) =
h) +13 –5 + 4 –11 =

i) -6 –11 – 4 +45 =
j) +9 – 5 + 11 – 12 + 14 =
k) -15 + 3 + 6 – 12 + 17 =
l) +6 – 2 + 4 – 11 – 16 =
m) - 45 + 13 – 11 + 23 =
n) + 34 – 12 – 5 – 23 =

Answer 1

Respuesta:

a) -6

b) -19

c) 9

d) 0

e) -2

f) -8

g)3

h)-4

i)24

j)17

k)-1

L)-19

m)-20

n)-6

Explicación paso a paso:

(+3) + (- 4) + (- 5) = 3-4-5

= -1-5

= -6

b) (-6 ) + (-12) + (-1) = -6-12-1

= -18-1

= -19

c) (+3) + (+21) + (-15) = 3+21-15

= 24-15

=9

d) (-5 ) + (+7) + (- 12) = -5+17-12

=12-12

=0

e) (+14) + (-9 ) + (- 7) = 14-9-7

=5-7

= -2

f) (-12 ) + (- 6 ) + (+3 ) + (-1) = -12-6+3+1

= -18+4

= -8

g) (+5 ) + (-3 ) + (+14 ) + (-2 ) + (- 11) = 5-3+14-2-11

2+12-11

14-11

3

h) +13 –5 + 4 –11 =

13-5+4-11

8-1-11

7-11

-4

i) -6 –11 – 4 +45 =

-6-11-4+45

-17+41

24

j) +9 – 5 + 11 – 12 + 14 =

9-5+11-12+14

4-1+14

3+14

17

k) -15 + 3 + 6 – 12 + 17 =

-15+3+6-12+17

-12-6+17

-18+17

-1

l) +6 – 2 + 4 – 11 – 16 =

6-2+4-11-16

4-7-16

-3-16

-19

m) - 45 + 13 – 11 + 23 =

-45+13-11+23

-32+12

-20

n) + 34 – 12 – 5 – 23 =

34-12-5-23

22-28

-6