Matemática, perguntado por alannabeatriz71, 7 meses atrás

GENTE ME AJUDA POR FAVOR
A) (+3) + (– 2) + (– 5) = +3 – 2 – 5 = +3 – 7 = − 4
B) (– 2) – (+1) – (− 5) = − 2 – 1 + 5 = − 3 + 5 = + 2
C) (+4) + (– 2) – (+3) =
D) (+5) – (– 3) – (– 1) =
E) (+4) + (– 6) – (+7) – (– 6) + (+7) =
F) (– 3 ) – (– 5 ) + (– 6) + (+8) – (– 4) =
G) + (– 3 + 8) – (– 3 + 8) + (5 – 6) =
H) −(−3 − 1) − (−6 + 4 − 1) − 6 − (−3 + 2) =
I) 18 − (−5 − 2 − 3) + 20 − (−6 + 8) − (−1 − 8 + 3) =
J) −32 − 1 − (−12 + 14 + 7) + (−5 − 6 − 9 + 3 ) − 17 =

Soluções para a tarefa

Respondido por heloisadasilvagomes1
0

Explicação passo-a-passo:

A) (+3) + (– 2) + (– 5) =

1+(-5)=

-4

B) (– 2) – (+1) – (− 5) =

-3-(-5)=

2

C) (+4) + (– 2) – (+3) =

2-(+3)=

-1

D) (+5) – (– 3) – (– 1) =

8-(-1)=

9

E) (+4) + (– 6) – (+7) – (– 6) + (+7) =

-2-13+(+7)=

-2-20=

-22

F) (– 3 ) – (– 5 ) + (– 6) + (+8) – (– 4) =

2+2-(-4)=

2+6=

8

G) + (– 3 + 8) – (– 3 + 8) + (5 – 6) =

+(5)-(5)+(-1)=

0+(-1)=

-1

H) −(−3 − 1) − (−6 + 4 − 1) − 6 − (−3 + 2) =

-(-4)-(-2-1)-6-(-1)=

-(-4)-(-3)-6-(-1)=

7-5=

2

I) 18 − (−5 − 2 − 3) + 20 − (−6 + 8) − (−1 − 8 + 3) =

18-(-7-3)+20-(2)-(-9+3)=

18-(-10)+18-(-6)=

28+24=

52

J) −32 − 1 − (−12 + 14 + 7) + (−5 − 6 − 9 + 3 ) − 17 =

-32-1-(2+7)+(-11-6)=

-32-1-(9)+(-17)=

-32-1-(-8)=

-32-9=

-41

Espero ter ajudado .

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