Question

resolva as expressões abaixo

Answer 1

A)(20-1)=19+(13-3)=10
10+19=29
B)(3+5)=8(12-4)=8
8-8=0
C)1+[3+(4-1)]4-1=3+3=6
6+1=7
D)7+[12+(3+10)-20]
3+10=17
12+17=29
29-20=9
9+7=16

Answer 2

Resposta:A)(20-1)=19+(13-3)=10

10+19=29

B)(3+5)=8(12-4)=8

8-8=0

C)1+[3+(4-1)]4-1=3+3=6

6+1=7

D)7+[12+(3+10)-20]

3+10=17

12+17=29

29-20=9

9+7=16

Explicação passo-a-passo: