Question

resolva as expressões abaixo
me ajudem ae prfr​

Answer 1

Resposta:

a) 3+(3-4+2).4=

3+(-1+2).4

3+1.4

3+4= 7

b)7-2.3+[2.(8÷4)-3]=

7-6 +[2.2 -3]

7-6+[ 4-3]

7-6+1

1+1=2

C) 8-5+{2.[6+(3.2)]}=

8-5+{2.[6+6]}

8-5+{2.12}

8-5+24

3+24= 27

d) {16÷[2+(18-12)]}.3=

{16÷[2+6]}.3

{16÷ 8}.3

2.3=6

e) 6+{3.[4-(-18÷9)]-8}=

6+{3.[4+2] -8}

6+{3.6-8}

6+{18-8}

6+10=16