7) Calcule o valor das expressões:

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)]} =

8) Calcule as expressões:

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

b) ( 3² - 2³) . 3³ - 2³ + 2² . 4² =

c) ( 2⁵ - 3³) . (2² - 2 ) =

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

e) (18 – 4 . 2) . 3 + 2⁴ . 3 - 3² . ( 5 – 2) =

f) 4² . [2⁴ : ( 10 – 2 + 8 ) ] + 2⁰ =

g) [( 4² + 2 . 3²) + ( 16 : 8)² - 35]² + 1¹⁰ - 10⁰ =

h) 13 + ( 10 – 8 + (7 – 4)) =

i) (10 . 4 + 18 – ( 2 . 3 +6)) =

j) 7 . ( 74 – ( 4 + 7 . 10)) =

k) ( 19 : ( 5 + 3 . 8 – 10)) =

l) (( 2³ + 2⁴) . 3 -4) + 3² =

m) 3 + 2 . ((3²- 2⁰) + ( 5¹ - 2²)) + 1 =