Question

Calcule as expressões:
a)2+{3.[5.(3+3)]}
b)20+[10-(8:2+2)+5]
c)150+{2.[4.3+(8.5-2.9)-(14.3-37)]}
d)25+{2.[10.(3+3)]}
e)80+[100-(12:2+2)+5]
f)100+{5.[4.3+(8.6-4.9)-(13.3-17)]}

Answer 1

Explicação passo-a-passo:

Calcule as expressões:

a)2+{3.[5.(3+3)]}=

2+{3.[5.(6)]}=

2+{3.[30]}=

2+{90}=

92

b)20+[10-(8:2+2)+5]=

20+[10-(4+2)+5]=

20+[10-(6)+5]=

20+[4+5]=

20+[9]=

29

c)150+{2.[4.3+(8.5-2.9)-(14.3-37)]}=

150+{2.[4.3+(40-18)-(42-37)]}=

150+{2.[4.3+(22)-(5)]}=

150+{2.[12+17]}=

150+{2.[29]}=

150+{58}=

208

d)25+{2.[10.(3+3)]}=

25+{2.[10.(6)]}=

25+{2.[60]}=

25+{120}=

145

e)80+[100-(12:2+2)+5]=

80+[100-(6+2)+5]=

80+[100-(8)+5]=

80+[100-13]=

80+[87]=

167

f)100+{5.[4.3+(8.6-4.9)-(13.3-17)]}=

100+{5.[4.3+(48-36)-(39-17)]}=

100+{5.[4.3+(12)-(22)]}=

100+{5.[4.3+(-10)]}=

100+{5.[12+(-10)]}=

100+{5.[2]}=

100+{10}=

110

Espero ter ajudado ❤️.