Question

8- Calcule
5
a) ( -2 + 4 ) =

3
b) ( 9 - 11 ) =

7
c) ( -4 -6 ) =

9- Calcule

2 3
a) ( -7 ) + 5 - ( -8 )=

3 5 4
b) ( +9 ) - ( -3 ) - ( +6 )=

5 3
c) ( -2 ) • ( -7 ) + ( -5 ) : ( +5 )=

3 2
d) 6 + 3 • ( -2 ) - ( -7 ) =

2 3 2. 2
e) 2 - [( -4 ) + ( -3 ) • 2 ] - ( 4 • 3 - 5)

8. 9.875
f) - 36 - [( -2 ) : 32 - 1 ] - [( - 1 )]
2 2
• ( - 6 ) + 4 ]

3. 5
g) - 16 - {[( - 3 ) - 8] - [( - 2 ) • ( - 5 ) + + ( - 8 )]} + 49

Answer 1

isso ja e demais mais vou responder
 8 calcule:
a)+2
b)-2
c)-10
9 calcule
a)+10
b)+12
c)+13
d)+81
e)+5