Question

1-resolva as expressões
(arme e efetue)

a)10+(5-3)-(7-4)=



b)10-[80+(15-7)+20]=



c){40+[18-[20-10)]+42}-50=



d)20-15+8-3+16=



e)48+{56-[12-3+[5-4)+10]-4}=​

Answer 1

Explicação passo-a-passo:

1-resolva as expressões

(arme e efetue)

a)10+(5-3)-(7-4)=

10+(2)-(3)=

10+(-1)=

9

b)10-[80+(15-7)+20]=

10-[80+(8)+20]=

10-[88+20]=

10-[108]=

-98

c){40+[18-[20-10)]+42}-50=

{40+[18-(10)+42}-50=

{40+[8+42}-50=

{40+[50]}-50=

{90}-50=

40

d)20-15+8-3+16=

5+5+16=

10+16=

26

e)48+{56-[12-3+[5-4)+10]-4}=

48+{56-[12-3+(1)+10]-4}=

48+{56-[9+1+10]-4}=

48+{56-[10+10]-4}=

48+{56-[20]-4}=

48+{36-4}=

48+{32}=

80

Espero ter ajudado ♥️.