Question

Calcule :
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=

Answer 1

a)+12
b)+23
c)+23
d)+44
e)+46
f)+4
g)+9
h)+13
i)+22
espero ter ajudado!!!

Answer 2

Boa tarde

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