Question

Resolva as expressoes numericas
a) {15+[3. √81 + 144 : 12+ (3.20):3]}
b) [320 : 5 - (20.2) + 150 : 15]
c) { 3√1000+ [(8.30) - (100:4) ] + 35}
d) { 300 - [ √144 + √121] + (3 elevado a 3. 5 elevado a 2)}

Answer 1

a){15+[3.$\sqrt{81}$ +144:12+(3.20):3]}=
   {15+[3.9+144:12+(60):3]}=
   {15+[27+12+20]}=
   {15+[59]}=
   74.

b)[320:5-(20.2)+150:15]=
    [64-40+10]=
    34.

c){3.$\sqrt{100}$ +[(8.30)-(100:4)]+35}=
   {3.10+[240-25]+35}=
   {30+240-25+35}=
   280.

d){300-[$\sqrt{144}$ + $\sqrt{121}$ ]+(3³.5²)}=
   {300-[12-11]+(27.25)}=
   300-1+675=
   -376.