Question

SOCORRO!! ADIÇÃO E SUBTRAÇÃO (NÚMEROS INTEIROS)
A) (+3) + (– 2) + (– 5) =

B) (– 2)– (+1)– (+5) =

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 =

Answer 1

Resposta:

A) (+3)+(-2)+(-5)=

+ 3- 2- 5

+1 -5

-4

B) (-2)-(+1)-(+5)=

=-2 -1 -5

=-8

C) (+4)+(-2)-(+3)=

4- 2- 3

4- 5

-1

D) (+5)-(-3)-(-1)=

+5 +3 +1

+9

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

=4- 6- 7+ 6+ 7

=4- 6+6-7+7

=4+0+0

=4

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

=-3+5-6+8+4

=2-6+8+4

=4+8+4

=4+4

=8

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

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

5-5-1=

0-1

-1

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

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

+4+3-6+1=

+8-6=+2

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

18+10+26-11+9

28+15+9=

52

J)−32−1−(−12+14+7)+(−5−6−9+3)−17=

-32-1-(-12+21)+(-20+3)-17

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

-32-1-9-17-17

-76

(comece pelos parênteses)

BOA SORTE