Question

O valor de 4*3. 4*5. 4*2:4*8, é: . (A) 16 . (B) 8 (C) 6 (D) 4​

Answer 1

Resposta:

1) Calcule o valor das expressões:

a) 5 + ( -3) + 1

b) 10 + (-2) -4

c) 12 – 1 + (-4)

d) -1 + 3 – 9 =

e) 18 – (+7) + 3

f) 6 + (-1) - 2

g) (-2) - 7 – (-1)

h) (-5) - 1 + (-1)

i) 5 - ( -10) + 2

j) (-2) + (-3) - 25

2) Calcule o valor das expressões:

a) (-3) . (+7) + (-8) . (-3)

b) (-3) + (+2) - 7

c) 8 + (-3 -1)

d) (-2 + 6) : (+3 – 5)

e) –(-5) + (-7 + 4)

f) (-2) + (+5) . (-2)

3) Calcule o valor das expressões:

a) 5 – { +3 – [(+2) -(-5) + 6 – 4 ]}

b) 15 – { -3 + [(5 – 6) . (9 -8 ) + 1]}

c) 18 – { 6 – [ -3 – (5 – 4) – (7- 9) ] – 1 }

d) -2 + { -5 –[ -2 – (-2) - 3- (3 -2 ) ] + 5 }

e) 4 – {(-2) . (-3) – [ -11 + (-3) . (-4)] – (-1)}

f) ( 32 – 8 : 4) + ( 45 : 9 + 8) – 6

4) Calcule o valor das expressões numéricas:

a) 45 – { 4 . [( 9 . 12 – 14 . 7 ) : ( 15 – 5 . 2 )]}

b) 20 : 4 + 3 . 2 – 15 : 3

c) [ 25 – ( 18 : 3 )]. { 5 – [ 18 – ( 4 . 5 – 4 )]}

d) { 38 + [( 143 : 11 + 7 ) – 5 . 2]}: 6

e) 2 . [ ( 5 – 2 ) . ( 3 + 2 . 7 )] – 2

f) ( 8 + 6 . 8 : 4) + [ 3 + 15 : 5 + 5]

g) 25 : 5 + ( 8 + 3 . 10 : 2) + ( 4 . 3 – 14 : 7)

h) {[ 12 – 5 x 2 + ( 24 : 3 – 7) ] + 5}

i) ( 32 – 8 : 4) + ( 45 : 9 + 8) – 6

Explicação passo-a-passo:

1) Calcule o valor das expressões:

a) 5 + ( -3) + 1

b) 10 + (-2) -4

c) 12 – 1 + (-4)

d) -1 + 3 – 9 =

e) 18 – (+7) + 3

f) 6 + (-1) - 2

g) (-2) - 7 – (-1)

h) (-5) - 1 + (-1)

i) 5 - ( -10) + 2

j) (-2) + (-3) - 25

2) Calcule o valor das expressões:

a) (-3) . (+7) + (-8) . (-3)

b) (-3) + (+2) - 7

c) 8 + (-3 -1)

d) (-2 + 6) : (+3 – 5)

e) –(-5) + (-7 + 4)

f) (-2) + (+5) . (-2)

3) Calcule o valor das expressões:

a) 5 – { +3 – [(+2) -(-5) + 6 – 4 ]}

b) 15 – { -3 + [(5 – 6) . (9 -8 ) + 1]}

c) 18 – { 6 – [ -3 – (5 – 4) – (7- 9) ] – 1 }

d) -2 + { -5 –[ -2 – (-2) - 3- (3 -2 ) ] + 5 }

e) 4 – {(-2) . (-3) – [ -11 + (-3) . (-4)] – (-1)}

f) ( 32 – 8 : 4) + ( 45 : 9 + 8) – 6

4) Calcule o valor das expressões numéricas:

a) 45 – { 4 . [( 9 . 12 – 14 . 7 ) : ( 15 – 5 . 2 )]}

b) 20 : 4 + 3 . 2 – 15 : 3

c) [ 25 – ( 18 : 3 )]. { 5 – [ 18 – ( 4 . 5 – 4 )]}

d) { 38 + [( 143 : 11 + 7 ) – 5 . 2]}: 6

e) 2 . [ ( 5 – 2 ) . ( 3 + 2 . 7 )] – 2

f) ( 8 + 6 . 8 : 4) + [ 3 + 15 : 5 + 5]

g) 25 : 5 + ( 8 + 3 . 10 : 2) + ( 4 . 3 – 14 : 7)

h) {[ 12 – 5 x 2 + ( 24 : 3 – 7) ] + 5}

i) ( 32 – 8 : 4) + ( 45 : 9 + 8) – 6