Question

Resolva as expressões
A) 5+(3-1)
B)(13-4)-8
C)12-(7-3)
D)(20-3)+(7+5)
E)5-[3+(2+5)]
F)3-[5-(4-6)]

Answer 1

a)5+(3-1)

5+2=7

b)(13-4)-8=

9-8=1

c)12-(7-3)

12-4=8

d)(20-3)+(7+5)=

17+12=29

e)5-[3+(2+5)]

5-[3+7]=

5-10=-5

f)3-[5-(4-6)]=

3-[5-(-2)]=

3-7=-4