Question

1-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]
g)2+[8-(7-5)+3]
h)3-7.3
I)1-(5+(1-9)]
j)2+[8-(7-5)+3]
k){5-[32-(50-20)]}
l)30+8÷(-2)
m)10-{30+(4-(5+2)]}
n)-2-(5-[3-(-3-1)]}

Answer 1

a)5-2=3
b)9-8=1
c)12-4=8
d)17+12=29
e)5-[3-3]=5