Question

Calcule o valor das seguintes expressões numéricas: a)14-(7-6)+98 -5) b)-10-9-7-4+6) c)18-(-12+3-7+4 d)10-[-5-(2-6)+4] e)18-[-4+9-(-3-1)]

com os calculos

Answer 1

a) 14-(7-6)+98-5=106

14-1+98-5

13+98-5

111-5

106

b) -10-9-7-4+6=-24

-19-7-4+6

-26-4+6

-30+6

-24

c) 18(-12+3-7+4)=6

18(-9-7+4)

18(-16+4)

18-12

6

d) 10[-5(2-6)+4]=5

10[-5-4+4]

10[-9+4]

10-5

5

e) 18[-4+9(-3-1)]=1

18[-4-9-4]

18[-13-4]

18-17

1