Question

Resolva as expressões numéricas:

A) (13-7)+8-1=
B) (10-4)-(9-8)+3=
C) 50-[37-(15-8)]=
D) [3+(3²-5.2)]÷(-5+10)=
E) {[(18-3)+(7+5-2]-5}-12=
F) [(18+3.2)÷8+5.3]÷6=

Answer 1

a)13-7=6/6 +8-1=13
b)10-4=6/9-8=1/6-1+3=8
c)15-8=7/37-7=30/50-30=
20
d)-5+10=5/9-10=-1/3+(-1)=2/2÷5=0,4
e)18-3=15/7+5-2=10/15+10-5=20/20-12=8
f)18+6=24/24÷8=3/3+15=18/18÷6=3

Answer 2

a. (13-7)+8-1
6+8-1
13

b. (10-4)-(9-8)+3
6-1+3
5+3
8

c. 59-[37-(15-8)]
59-[37-7]
59-30
29

d. [3+(3²-5.2)]:(-5+10)
[3+(9-10)]:5
[3+1]:5
4:5
0,8

e. {[(18-3)+(7+5-2)]-5}-12
{[15+(11-2)]-5}
{[15+9-5]-5}
{[24-5]-5}
{19-5}
14

Espero ter ajudado!!