Question

Calcule o valor das expressões:
A( 5²:(5+1-1)+4x2
B) (3+1)²+2x5-10°
C)3²:(4-1)+3x2²
D) 70-[5x(2²:4)+3²
E) (7+4)x(3²-2³)
F) 5²+2³-2x(3+9)
G) 6²:3²+4x10-12
H) (7²-1):3+2x5

Answer 1

A) ( 5²:(5+1-1)+4x2
( 5²:(6-1)+4x2
( 5²:5)+4x2
(25:5)+4x2
5+8
13

B) (3+1)²+2x5-10°
4²+2x5-10°
16+2x5-10°
16+2x5-1
16+10-1
26-1
25

C)3²:(4-1)+3x2²
3²:3+3x2
9:3+3x2
3+3x2
3+6
9

D) Falta um colchete

E) (7+4)x(3²-2³)
11x(3²-2³)
11x(9-2³)
11x(9-8)
11x1
11

F) 5²+2³-2x(3+9)
5²+2³-2x 12
25+2³-2x 12
25+8-2x 12
25+8-24
33-24
9

G) 6²:3²+4x10-12
36:3²+4x10-12
36:9+4x10-12
4+4x10-12
4+40-12
44-12
32

H) (7²-1):3+2x5
(49-1):3+2x5
48:3+2x5
16+10
26

Answer 2

a) 5² : ( 5 +1 -1)+ 4 x 2 = (R: 13)

b) (3 +1)² +2 x 5 - 10⁰ = (R: 25)

c) c) 3²: ( 4 – 1) + 3 x 2² = (R: 15)

d) 70 –[ 5 x (2² : 4) + 3²] = (R: 56)

e) ( 7 + 4) x ( 3² - 2³) = (R: 11)

f) 5² + 2³ - 2 x (3 + 9) = (R: 9)

g) 6² : 3² + 4 x 10 – 12 = (R: 32)

h) (7² - 1 ) : 3 + 2 x 5 = (R: 26)