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 =
Soluções para a tarefa
Respondido por
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
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