Question

Calcule as expressões numéricas:
a) 2 + 8 – 3 – 5 + 15 =
b) 12 + [35 - (10 + 2) +2] =
c) [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6 =
d) 37 + [-25 – (-11 + 19 – 4)] =
e) 18 – 7 + 15 .2 – 2 =
f) 30 { 10 + [ 15 – 7 + ( 18 – 8) ]} =

Answer 1

Resposta:

a) 17

b) 37

c) 3

d) 8

e) 39

f) 125

Explicação passo-a-passo:

a) 2+8-3-5+15

10-3-5+15

7-5+15

2+15

17

Resposta》》》》》17

b) 12+[35-(10+2)+2]

12+[35-12+2]

12+[23+2]

12+25

37

Resposta》》》》》37

c) [(18+3.2)÷8+5.3]÷6

[(18+6)÷8+5.3]÷6

[24÷8+5.3]÷6

[3+5.3]÷6

[3+15]÷6

18÷6

3

Resposta》》》》》3

d) 37+[-25-(-11+19-4)]

37+[-25-(-8-4)]

37+[-25-4]

37+[-29]

8

Resposta》》》》》8

e) 18-7+15.2-2

18-7+30-2

11+30-2

41-2

39

Resposta 》》》》》39

f) {10+[15.7+(18-8)]}

{10+[15.7+10]}

{10+[105+10]}

{10+115}

125

Resposta 》》》》》124

ESPERO TER TE AJUDADO