Question

Calcule o valor das expressões

j) 5² + 3 x 2 – 4 =

k) 5 x 2² + 3 – 8 =

l) 5² - 3 x 2² - 1 =

m) 16 : 2 – 1 + 7² =

n) ( 4 + 3)² - 1 =

o) ( 5 + 1 )² + 10 =

p) ( 9 – 7 )³ x 8 =

q) ( 8 : 2) . 4 + {[(3² - 2³) . 2⁴ - 5⁰] . 4¹}=

r) ( 3² - 2³) . 3³ - 2³ + 2² . 4² =

s) ( 2⁵ - 3³) . (2² - 2 ) =

t) [2 . (10 - 4² : 2) + 6²] : ( 2³ - 2²) =​

Answer 1

Resposta:

j)=27

k)=1)

a) 2³·5+3² = 8·5+9 = 40+9 = 49

b) 70⁰+0⁷⁰-1 = 1+0-1 = 0

c) 3·7¹-4·5⁰ = 3·7-4·1 = 21-4 = 17

d) 3⁴-2⁴:8-3·4 = 81-16:8-12 = 81-2-12 = 79-12 = 67

e) 5²+3·2-4 = 25+6-4 = 31-4 = 27

f) 5·2²+3-8 = 5·4+3-8 = 20+3-8 = 23-8 = 15

g) 5²-3·2²-1 = 25-3·4-1 = 25-12-1 = 13-1 = 12

3)

a) 5²:(5+1-1)+4·2 = 25:5+8 = 5+8 = 13

b) (3+1)²+2·5-10⁰ = 4²+10-1 = 16+10-1 = 26-1 = 25

c) 3²:(4-1)+3·2² = 9:3+3·4 = 3+12 = 15

d) 70-[5·(2²:4)+3²] = 70-[5·(4:4)+9] = 70-[5·1+9] = 70-[5+9] = 70-14 = 56

e) (7+4)·(3²-2³) = 11·(9-8) = 11·1 = 11

f) 5²+2³-2·(3+9) = 25+8-2·12 = 33-24 = 9

g) 6²:3²+4·10-12 = 36:9+40-12 = 4+40-12 = 44-12 = 32

l)

Explicação passo-a-passo: