Question

adição de subtração
a) +10 + 2
B)+2+21
C)+5+18
D)+23+21
E)+12+34
F)+12-8
G)+15-6
H)+45-32
i) +56-34
J)+57-31
K)-32+25
L)-23+12
M)-15+13
N)-45+40
O)-35+27
P)-23+32
Q)-32+53
R)-12+32​

Answer 1

Resposta:

a) +10 + 2 = +12

B)+2+21 = +23

C)+5+18 = +23

D)+23+21 = +44

E)+12+34 = +46

F)+12-8 = +4

G)+15-6 = +9

H)+45-32 = +13

i) +56-34 = +22

J)+57-31 = +26

K)-32+25 = -7

L)-23+12 = -11

M)-15+13 = -2

N)-45+40 = -5

O)-35+27 = -8

P)-23+32 = +9

Q)-32+53 = +21

R)-12+32 = +20

Espero ter ajudado :)