Question

Calcule as expressões

B) 25+(8+2)
C)35-(20-1-3)
D)35-[20+(8-5)]
E)42+[10-(9-4)+8]
F){52+[(45-19-(21-6)+11-(38-25)-1}
G)510+{380-[40+230)+(100-20)]}

Answer 1

B) 25+(8+2)
25+10
=35

C)35-(20-1-3)
35-26
=9

D)35-[20+(8-5)]
35-[20+3]
35-23
=12

E)42+[10-(9-4)+8]
42+[10-5+8]
42+13
=55

F){52+[(45-19-(21-6)+11-(38-25)-1}
{52+[26-15+11-13]-1}
{52+9-1}
52+8
=44

G)510+{380-[40+230)+(100-20)]}
510+{380-[260+80]}
510+{380-340}
510+40
= 550

Espero ter ajudado!