Question

1. Resolva as seguintes expressões numéricas:

a. [ ( 18 + 3 . 2 ) : 8 + 5 . 3 ] : 3 =

b. 100 – 3 . { 5 + 8 : 2 – [ 3 . ( 7 – 6 ) ] } =


c. 70 – { 20 + [ 3 + 5 . ( 64 : 16 ) – 11 ] } + 9 =

d. 12 + { 13 – [ 1 + 4 . ( 45 : 9 ) – 11 ] + 2 } =

Answer 1

Explicação passo-a-passo:

Boa noite e bons estudos ❤

a. [ ( 18 + 3 . 2 ) : 8 + 5 . 3 ] : 3 =

[ ( 18 + 6 ) : 8 + 15 ] : 3 =

[ 24 : 8 + 15 ] : 3 =

[ 3 + 15 ] : 3 =

18 : 3 =

6

b. 100 – 3 . { 5 + 8 : 2 – [ 3 . ( 7 – 6 ) ] } =

100 – 3 . { 5 + 8 : 2 – [ 3 . 1 ] } =

100 – 3 . { 5 + 4 – 3 } =

100 – 3 . 6 =

100 – 18 =

82

c. 70 – { 20 + [ 3 + 5 . ( 64 : 16 ) – 11 ] } + 9 =

70 – { 20 + [ 3 + 5 . 4 – 11 ] } + 9 =

70 – { 20 + [ 3 + 20 – 11 ] } + 9 =

70 – { 20 + 12 } + 9 =

70 – 32 + 9 =

79 – 32

47

d. 12 + { 13 – [ 1 + 4 . ( 45 : 9 ) – 11 ] + 2 } =

12 + { 13 – [ 1 + 4 . 5 – 11 ] + 2 } =

12 + { 13 – [ 1 + 20 – 11 ] + 2 } =

12 + { 13 – [ 21 – 11 ] + 2 } =

12 + { 13 – 10 + 2 } =

12 + { 13 – 12 } =

12 + 1 =

13

Answer 2

[18+6÷8+15]÷3

[24÷8+15÷3]

[3+5]

8

b)100-3×{5+4-[3×1]}

100-3×{5+4-[3]}

100- 3×{5+4-3}

100-3×{5+1}

100-3×{6}

100-3×6

100-18=82

c)70-{20+[3+5×24-11]}+9

70-{20+[3+120-11]}

70-{20+[3+109]}

70-{20+[112]}

70-{20+112}

70-{132}

70-132 =62

d)12+{13-[1+4×5-11]+2}

12+{13-[1+20-11]+2}

12+{13-[1+19]+2}

12+{13-[20]+2}

12+{13-20+2}

12+{13-18}

12+{-5}

12-5=7

espero ter ajudado