Question

RESOLVA as seguintes expressões numéricas:
a) 62 + ( - 30 ). ( - 1 )

b) 5 . ( - 12) – 32 . ( - 2 ) + ( 2 . 3 - 7 )

c) – ( 8 – 10 ) . ( 4 – 5 . 6 ) + ( 7 – 9 . 2 )

d) – [ - ( 4 – 3 . 7 ) + ( 2 . 8 – 5 . 3 )

e) – 2 . [ + 5 – 8 . ( 7 – 4 . 2 ) + 3 . 9 – 5 . 4]

f) 20 – { 9 – [ ( - 4 + 9 ) . ( - 2 ) – 10 ] }

g) – 45 : ( - 9 ) + ( 3 – 4 )

h) [ 8 – ( 3 . 5 – 3 ) : ( - 6 . 2 ) ] . 5 + 4 . ( - 3 )

i) 7 . ( - 6 + 5 . 8 ) – ( - 6 : 3 )

j) – 25 – ( 12 – 3 . 5 ) : { [ ( 5 – 6 ) + ( - 7 . 2 ) : ( - 2 ) ] : 2 }


Me ajudem Rapido Pfv é para Hojeee .... Calculos junto com respostas

Answer 1

A) 62+30 = 92

B) -60 -32 X (-2) + (6-7) = -60 +64 -1= 3

C) +2 X 4-30 + 7-18 = +8 X -30 -11 = -251

D) +4 -21 + 16 - 15 = -17 + 1 = -16

E) -2 X -3 X 7-8 +27 -5= 6 X -1 +22= -6+22= +16

F) 20- 9 -5 X -12 = 11+60= 71

G) +5 -1 = +4

H) 8- 15 -3 : -12 X 9 X -3 = +7 +4 X -27 X -3= +11 X +81 = 901

I) 7 X -6 +40 +2 = -42 +42= 0

Answer 2

Oie, Td Bom?!

>>> Resolvendo as expressões numéricas.

a)

62 + (- 30) × (- 1)

62 + 30

92

b)

5 × (- 12) - 32 × (- 2) + (2 × 3 - 7)

- 60 + 64 + (6 - 7)

- 60 + 64 + (- 1)

- 60 + 64 - 1

- 61 + 64

3

c)

- (8 - 10) × (4 - 5 × 6) + (7 - 9 × 2)

- (- 2) × (4 - 30) + (7 - 18)

2 × (- 26) + (- 11)

- 52 - 11

- 63

d)

- [- (4 - 3 × 7) + (2 × 8 - 5 × 3)]

- [- (4 - 21) + (16 - 15)]

- [- (- 17) + 1]

- [17 + 1]

- 18

e)

- 2[5 - 8(- 7 - 4 × 2) + 3 × 9 - 5 × 4]

- 2[5 - 8(- 7 - 8) + 27 - 20]

- 2[5 - 8 × (- 15) + 27 - 20]

- 2[5 + 120 + 27 - 20]

- 2[152 - 20]

- 2 × 132

- 264

f)

20 - {9 - [(- 4 + 9) × (- 2) - 10]}

20 - {9 - [5 × (- 2) - 10]}

20 - {9 - [- 10 - 10]}

20 - {9 - [- 20]}

20 - {9 + 20}

20 - 29

- 9

g)

- 45 ÷ (- 9) + (3 - 4)

5 + (- 1)

5 - 1

4

h)

[8 - (3 × 5 - 3) ÷ (- 6 × 2)] × 5 + 4 × (- 3)

[8 - (15 - 3) ÷ (- 12)] × 5 - 12

[8 - 12 ÷ (- 12)] × 5 - 12

[8 + 1] × 5 - 12

9 × 5 - 12

45 - 12

33

i)

7(- 6 + 5 × 8) - (- 6 ÷ 3)

7(- 6 + 40) - (- 2)

7 × 34 + 2

238 + 2

240

j)

- 25 - (12 - 3 × 5) ÷ {[(5 - 6) + (- 7 + 2) ÷ (- 2)] ÷ 2}

- 25 - (12 - 15) ÷ {[(- 1) + (- 14) ÷ (- 2)] ÷ 2}

- 25 - (- 3) ÷ {[- 1 + 7] ÷ 2}

- 25 + 3 ÷ {6 ÷ 2}

- 25 + 3 ÷ 3

- 25 + 1

- 24

Att. Makaveli1996