Simplifique as expressões e calcule:
a) ( +30 ) + (+8)=
b) ( +2 ) + ( +5 ) + ( + 12 )=
c) ( +21 ) + ( -5 )=
d) ( -8 ) – ( -4 ) + ( +3 ) – ( -12 )=
e) ( -18 ) + ( -17 )=
f) ( +10 ) – ( -5 ) – ( -8 ) – ( -13 )=
Soluções para a tarefa
Simplifique as expressões e calcule:
a) ( +30 ) + (+8)=
+30 + 8 =
38
b) ( +2 ) + ( +5 ) + ( + 12 )=
+2 + 5 + 12 =
19
c) ( +21 ) + ( -5 )=
+21 - 5 =
16
d) ( -8 ) – ( -4 ) + ( +3 ) – ( -12 )=
-8 + 4 + 3 + 12 =
-8 + 19 =
11
e) ( -18 ) + ( -17 )=
- 18 - 17 =
- 35
f) ( +10 ) – ( -5 ) – ( -8 ) – ( -13 )=
+10 + 5 + 8 + 13 =
36
Olá!
A ) ( + 30 ) + ( + 8 )
+ 30 + 8
+ 38
B ) ( + 2 ) + ( + 5 ) + ( + 12 )
+ 2 + 5 + 12
+ 7 + 12
+ 19
C ) ( + 21 ) + ( - 5 )
+ 21 - 5
+ 16
D ) ( - 8 ) - ( - 4 ) + ( + 3 ) - ( - 12 )
- 8 + 4 + 3 + 12
- 4 + 3 + 12
- 1 + 12
+ 11
E ) ( - 18 ) + ( - 17 )
- 18 - 17
- 35
F ) ( + 10 ) - ( - 5 ) - ( - 8 ) - ( - 13 )
+ 10 + 5 + 8 + 13
+ 15 + 8 + 13
+ 24 + 13
+ 36
Bons Estudos ( ^ - ^ )