Question

1) Calcule o valor das expressões
a) 10 – 1 + 8 – 4 =
b) 12 – 8 + 9 – 3 =
c) 25 – 1 – 4 – 7 =
d) 30 – ( 5 + 3 ) =
e) 15 + ( 8 + 2 ) =
f) 25 – ( 10 – 1 – 3 ) =
g) 45 – 18 + 3 + 1 – 2 =
h) 75 – 10 – 8 + 5 – 1 =
i) 10 + 5 – 6 – 3 – 3 + 1 =
j) 23 – ( 2 + 8 ) – 7 =
k) ( 10 + 5 ) – ( 1 + 6 ) =
l) 7 – ( 8 – 3 ) + 1 =
m) 25 – [ 10 + ( 7 – 4 ) ] =
n)32+ [ 10 – ( 9 – 4 ) + 8 ] =
o) 45 – [ 12 – 4 + ( 2 + 1 )] =
p) 70 – { 20 – [ 10 – ( 5 – 1 ) ]} =
q) 28 + { 13 – [ 6 – ( 4 + 1 ) + 2 ] – 1 } = r) 53 – { 20 – [ 30 – ( 15 – 1 + 6 ) + 2

Answer 1

Resposta:

Explicação passo-a-passo:

A) 10 + 8 = 18

   -1 - 4 = -5

    18 - 5 = 13

Answer 2

Resposta:

a) 13

b)10

c)13

d)22

e)25

f)19

g)29

h)61

i)4

j)6

k)8

l)3

m)12

n)45

o)34

p)56

q)19

Explicação passo-a-passo:

a)10-1+8-4= b)12-8+9-3= c)25-1-4-7=

9+8-4 4+9-3 24-4-7

17-4 13-3 20-7

13 10 13