Question

Calcule:

a) + 4 + 6 + 8 - 4 - 2 - 6 =
b) + 8 + 9 - 8 + 4 - 9 =
c) 5 + 4 + 8 - 9 + 2 =
d) 3 - (4+6) + 8 + (2+7) =
e) 5 - (2-7) + 3 - (2-4) =
f) 5 + { 2 - [ 3 + 2 . (5 + 4) ] }
g) 2 - { 3 - [ 2 + 3 . (2 + 4) ] }
h) 2 . (-3) + 4 (-5) - 3 (-9) + 6 . (-2) =
i) - 32 - 2 . { - 9 . 3 . 4 - [ 4 . (-8) . 2 . (-4) ] } =
j) 2/2 + 3/2 + 4/2 =
k) 3/2 + 3/2 + 5/4 =
l) 2/3 . 3/4 . 4/6 =



Me ajudemm, por favor

Answer 1

A⇒+6
B⇒+4
C⇒+10
D⇒+10
E⇒+10
F⇒-14
G⇒+19
H⇒-11
I⇒-21568
J⇒9/2
K⇒17/4
L⇒24/72 simplifica ⇒1/3