Question

responda
a) (+3)+(+7)=
b) (+4) + (+9)=
C) (+6)+(+12)+(+2)
D) (+1)+ (+2) +(+3)+ (+5)=
​

Answer 1

Resposta:

a)(+3)+(+7)=10

b)(+4)+(+9)=13

c)(+6)+(+12)+(+12)=

(+18)+(+12)=30

d)(+1)+(+2)+(+3)+(+5)=

(+3)+(+3)+(+5)=

(+6)+(+5)=11