Question

2) Calcule;
n exclua
coloquei em anexo

Answer 1

Resposta:

a) +5

B+9

C) +4

d)+14

e)+14

f)-3

g)-4

h) -4

i)-7

j)-11

k)+13

l)+18

m)+8

n)-20

o)-7

p)+12

q)-4

r)-15

s)-8

Answer 2

Explicação passo-a-passo:

1l

a)

$( + 2) + ( + 3) = + 2 + 3 = \Large \boxed{ \green{\bf5}}$

b)

$( + 1) + ( + 8) = + 1 + 8 =\Large \boxed{\green{ \bf9}}$

c)

$( + 2) + ( + 2) = + 2 + 2 = \Large\boxed{\green{\bf4 }}$

d)

$( + 3) + ( + 11) = + 3 + 11 = \Large \boxed{\green{\bf14 }}$

e)

$( + 7) + ( + 2) + ( + 5) = \\ \\ = + 7 + 2 + 5 \\ \\ = + 9 + 5 \\ \\ = \Large \boxed{\green{\bf 14}}$

f)

$( - 1) + ( - 2) = - 1 - 2 = \Large\boxed{\green{ \bf- 3 }}$

g)

$( - 2) + ( - 2) = - 2 - 2 =\Large \boxed{ \green{ \bf - 4 }}$

h)

$( - 3) + ( - 1) = - 3 - 1 = \Large \boxed{\green{\bf - 4 }}$

i)

$( - 5) + ( - 2) = - 5 - 2 = \Large \boxed{\green{\bf - 7 }}$

j)

$( - 8) + ( - 1) + ( - 2) = \\ \\ = - 8 - 1 - 2 \\ \\ = - 9 - 2 \\ \\ = \Large \boxed{\green{\bf - 11}}$

k)

$( + 8) + ( - 5) = + 8 - 5 = \Large \boxed{\green{ \bf+ 3 }}$

l)

$( + 15) + ( - 3) = + 15 - 3 = \Large \boxed{\green{\bf + 12 }}$

m)

$( - 12) + ( + 20) = - 12 + 20 = \Large \boxed{\green{\bf+ 8 }}$

n)

$( - 30) + ( + 10) = - 30 + 10 = \Large \boxed{\green{\bf- 20 }}$

o)

$( + 1) + ( - 8) = + 1 - 8 = \Large \boxed{\green{\bf - 7 }}$

p)

$(+ 8) + ( - 3) + ( + 7) = \\ \\ = + 8 - 3 + 7 \\ \\ = + 5 + 7 \\ \\ = \Large \boxed{\green{\bf+ 12}}$

q)

$( - 5) + ( - 2) + ( + 3) = \\ \\ = - 5 - 2 + 3 \\ \\ = - 7 + 3 \\ \\ = \Large \boxed{\green{\bf - 4}}$

r)

$( + 2) + ( - 9) + ( + 8) = \\ \\ = + 2 - 9 + 8 \\ \\ = - 7 + 8 \\ \\ = \Large \boxed{\green{\bf+ 1}}$

s)

$( - 4) + ( - 2) + ( + 3) + ( - 5) = \\ \\ = - 4 - 2 + 3 - 5 \\ \\ = - 6 - 2 \\ \\ =\Large \boxed{\green{ \bf - 8}}$

t)

$( + 3) + ( - 13) + ( - 5) = \\ \\ = + 3 - 13 - 5 \\ \\ = - 10 - 5 \\ \\ = \Large \boxed{ \green{ \bf - 15}} \\ \\ \Large \boxed{ \underline{ \blue{ \bf \: Bons \: Estudos!}}} \\ \\ \Large \boxed{ \underline{22/05/2021}}$