Question

urgente me ajudem serio 2) Calcule:
a)4 + 5 + 3 – 7 – 2 – 8 =____________________
b) -53 + 21 – 15 + 30 – 18 + 53 =______________
c) 10 – 3 + 7 =___________________________
d) 1 – 8 + 8 =____________________________
e) – 7 + 15 – 3 + 9 -4 – 1 =___________________
f) 8 + (7 - 1) - (-3 + 1 - 5)=__________________

g) 15 - (3 - 2) + (7 - 4)=____________________
h) 25 - (8 - 5 + 3) - (12 - 5 - 8)=______________
i) 10 + [- 3 + 1 - (- 2 + 6)]=___________________
3) Elimine os parênteses, e encontre o valor das expressões:
a) 2 – ( - 5 + 3 – 1 ) = ___________________________________
b) – 3 – ( - 5 – 4 ) + ( - 2 – 17 ) =___________________________
c) – 12 + ( 4 – 7 + 10 ) =_________________________________
d) 45 – ( 12 + 32 – 1 ) + ( 5 – 15 + 3 ) =______________________
4) Calcule as somas algébricas:
a) 15 – ( 3 – 2) + ( 7 - 4) =__________________
b) 25 – ( 8 – 5 + 3) – ( 12 – 5 – 8) =____________
c) ( 10 – 2) – 3 + ( 8 + 7 – 5) =________________
d) ( 9 – 4 + 2) – 1 + ( 9 + 5 – 3) =______________
e) 18 – [ 2 + (7 – 3 – 8) – 10 ] =_______________
f) – 4 + [ - 3 + ( -5 + 9 - 2)] =________________
g) – 6 – [ 10 + (- 8 – 3) – 1] =_________________
h) – 8 – [ - 2 – ( - 2) – ( - 12) + 3] =____________
i) 25 – { - 2 + [6 + ( - 4 – 1 ) ] } =______________
j) 17- { 5 – 3 + [ 8 – ( - 1 – 3) + 5 ] } =__________
l) 3 – { - 5 – [ 8 – 2 + ( – 5 + 9 ) ] } =____________
m) – 10 – { - 2 + [ + 1 – ( - 3 – 5 ) + 3 ] } =________
n) { 2 + [ 1 + ( - 15 – 15 ) – 2 ] } =______________
o) { 30 + [ 10 – 5 + ( - 2 – 3 ) ] – 18 – 12 } =______
p) 20 + { [ 7 + 5 + ( - 9 + 7 ) + 3 ] } =___________
q) - 4 – { + 2 + [ - 3 – ( - 1 + 7) ] + 2 } =_________
r) 10 – { - 2 + [ + 1 + ( + 7 – 3 ) – 2 ] + 6 } =_______
s) – { - 2 – [ - 3 – ( - 5) + 1] } – 18 =____________
t) { [ ( - 50 – 10 ) + 11 + 19 ] + 20 } + 10 =

Answer 1

Resposta:

2

A)-5

B)18

C)14

D)1

E)9

F)21

G)17

H)20

I)4

Explicação passo-a-passo:

descupa eu não responde o resto pq eu tou ocupado❤