Question

I - Calcule as potências:

1) ( + 7 )² =

2) ( + 4 )² =


3) ( + 3 )² =


4) ( + 5 )² =


5) ( + 5 )³ =


6) ( + 2)³ =


7) ( + 3 )³ =


8) ( + 2 )² =


9) ( + 2 )° =


10) ( - 5 ) ² =


11) ( - 3 )² =

12) ( - 2 )³ =

13) ( - 5 )³ =


14 ) ( - 1 )³ =


15 ) (- 2 )¹ =


16) ( - 3 )³ =


17) ( - 3 )° =


18) ( - 6 )² =


19)( + 3 )¹ =


20) ( - 6)³ =


II- Calcule o valor das expressões:

1) ( + 3 ) x ( + 11 ) x ( - 2 ) =


2) ( - 5 ) x ( + 6 ) x ( + 9 ) =


3) ( 5 + 2 ) x ( - 3 ) =


4) ( 4 - 7 ) x 5 =


5) ( - 4 ) x ( - 5 + 91 ) =


6) ( + 30 ) : ( - 6 ) =


7) ( + 640 ) : ( - 80 ) =


8) ( - 12 ) : ( + 3 ) =


9) ( - 360 ) : ( + 4 ) =

10) ( + 40 ) : ( + 5 ) =


III- Calcule o valor de cada expressões numérica abaixo:


1) 8 x [ - 5 x ( - 2 + 4 ) - ( + 5 - 3 ) ] : ( - 4 ) =


2) 1 - { 28 - [ ( + 7 - 2 ) x ( 15 - 21 ) ] + 6 x ( - 4 ) } =


3) [ ( - 3 ) x ( - 3 ) x ( - 3 ) + ( + 5 ) ] : 22 =


4) ( - 100 ) : ( - 25 ) + ( - 3 ) x (- 3 ) - 5 x 5 - ( 2 x 2 x 2 ) + 3 x 3 =


5) ( + 8 - 14 ) : [ ( + 7 - 12 ) + ( + 15 - 1 2 ) ] x 7 =
​

Answer 1

Resposta:

1)a)49

b)16

c)9

d)25 o

e)125

f)8

g)27

h)4

i)0

j)+25

k)+9

l)+8

m)-1256

n)-1

o)-2

p)-27

q)0

r)36

s)3

t)-216