Question

Resolva as expressões abaixo:
1) ( 20 – 1 ) + ( 13 – 3 ) =
2) ( 3 + 5 ) – ( 12 – 4 ) =
3) 1 + [ 3 + ( 4 + 1 ) ] =
4) 3 – [ 5 – ( 3 + 2 ) ] =
5) 2 + [ 8 – ( 5 + 1 ) + 3 ] =
6) 8 + [ 4 + ( 5 – 1 ) – 2 ] =
7) 5 + { 10 – [ 8 – ( 4 + 3 ) ]} =

Answer 1

Resposta:

1)=29

2)=0

3)=9

4)=3

5)=3

6)=14

7)=14

espero ser ajudado~♡