a) 4²- 10 + (2³ - 5) =
b) 30 – (2 + 1)²+ 2³ =
c) 30 + [6² : ( 5 – 3) + 1 ] =
d) 20 – [6 – 4 x( 10 - 3²) + 1] =
e) 50 + [ 3³ : ( 1 + 2) + 4 x 3] =
f) 100 –[ 5² : (10 – 5 ) + 2⁴ x 1 ] =
g) [ 4² + ( 5 – 3)³] : ( 9 – 7)³ =
h) 7²+ 2 x[(3 + 1)² - 4 x 1³] =
i) 25 + { 3³ : 9 +[ 3² x 5 – 3 x (2³- 5¹)]} =
Soluções para a tarefa
Resposta:
A) 9
B) 29
C) 49
D) 17
E) 71
F) 79
G) 3
H) 73
I) 64
contas:
A) 4² - 10 + ( 2³ - 5)
4² - 10 + (8 - 5)
16 -10 + 3
6 + 13 = 9
B) 30 - ( 2 + 1)² + 2³
30 - ( 3)² + 2³
30 - 9 + 8
21 + 8 = 29
C) 30+[6²:(5-3)+1]
30 + [36/2 + 1]
30 + [18+1]
30 + 19 = 49
D) 20 – [6 – 4 x(10 – 3²) + 1] =
20 - [ 6 - 4 x(10 - 9) + 1] =
20 - [ 6 - 4x ( 1 ) + 1 ] =
20 - [ 6 - 4 + 1 ]
20 - [ 7 - 4] =
20 - [ 3 ] =
20 - 3 = 17
E) 50+[3³:(1+2)+4x3]
50+[27:3+4x3]
50+[9+4x3]
50+[9+12]
50+21
71
F) 100-[25/5+16]
100-[21]
=79
G) [ 4² + (5-3)³]: ( 9-7)³=
[4²+ (2)³]: (2)³=
[ 4² + 8 ] : 8
[16+8] : 8 =
24 : 8 = 3
H) 49 + 2×[16-4]
49 + 2×12
49 + 24 = 73
I) 25 + { 3³ : 9 +[ 3² x 5 – 3 x (2³- 5¹)]}
25 + { 27 : 9 + [ 9 x 5 - 3 x ( 8 - 5 )]}
25 + { 3 + [ 45 - 24 + 15 ]}
25 + { 3 + 45 - 24 + 15 }
25 + 3 + 45 - 24 + 15
28 + 21 + 15
49 + 15
64