Question

Resolva as expressões numéricas a seguir:
a)7 – ( 1 + 3) =
b) 9 – ( 5 – 1 + 2) =
c) 10 – ( 2 + 5 ) + 4 =
d) 52 – { 12 + [ 15 – ( 8 – 4)]} =
e) 45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } =
f) 45 -[12 -4+(2+1)] =
g) 6 ² : 3 ² + 4 x 10
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Answer 1

Resposta:

a) 3

b) 3

c)7

d) 29

e)36

f)34

g) 44

Explicação passo a passo:

a) 7 - (1+3)

7 - (4)

7 - 4 = 3

b) 9 – ( 5 – 1 + 2)

9 - (6)

9 - 6 = 3

c) 10 – ( 2 + 5 ) + 4

10 - (7) + 4

10 - 7 + 4 = 7

d) 52 – { 12 + [ 15 – ( 8 – 4)]} =

52 - { 12 + [ 15 – (4)]}

52 - { 12 + 11}

52 - 23 = 29

e)  45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } =

45 + { 15 – [ ( 2) + ( 3) – 3 ] – 4 }

45 + { 15 – [ 2] – 4 }

45 + 9 = 36

f) 45 - [12 -4+(2+1)] =

45 - [12 -4+(3)]

45 - 11 = 34

g) 6 ² : 3 ² + 4 x 10

2² + 4 x 10

2² + 40

4 + 40 = 44