EXPRESS ES

1) EXERCÍCIOS DE MATEMATICA:
a) 25-[10+(7-4)] =
b) 32+[10-(9-4)+8] =
c) 45-[12-4+(2+1)] =
d) 70-{20-[10-(5-1)]} =
e) 28+{13-[6-(4+1)+2]-1} =
f) 53-{20-[30-(15-1+6)+2]} =
g) 62-{16-[7-(6-4)+1]} =
h) 20-{8+[3+(8-5)-1]+6} =
i) 15+{25-[2-(8-6)]+2} =
j) 56-[3+(8-2)+(51-10)-(7-2)] =
l){42+[(45-19)-(18-3)+1]-(28-15)-1} =

2) Calcule o valor da expressões

a) 7-(1+3)=
b) 9-(5-1+2)=
c) 10-(2+5)+4=
d) (13-7)+8-1=
e) 15-(3+2)-6=
f) (10-4)-(9-8)+3=
g) 50-[37-(15-8)]=
h) 28+[50-(24-2)-10]=
i) 20+[13+(10-6)+4]=
j) 52-{12+[15-(8-4)]}=

3)Calcule o valor das expressões:

a) 25 + { 12 + [ 2 – ( 8 – 6 ) + 2 ]} =
b) { [ ( 18 – 3 ) + ( 7 + 5) – 2 ] + 5 } – 12 =
c) 65 – { 30 – [ 20 – ( 10 – 1 + 6) + 1 ]} =
d)45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } =
e) 40 + { 50 – [35 – ( 25 +5) – 1 ]} + 7 =
f)38 – { 20 – [ 22 – ( 5 + 3) + ( 7 – 4 +1)]} =
g) 26 + { 12 – [ ( 30 – 18) + ( 4 – 1) – 6 ] – 1 } =

a) 10 - 5 - 2 + 3 =
b) 10 - ( 5 + 2) + 3 =
c) ( 10 - 5) - ( 2 + 3) =
d) 10 - ( 5 - 2 + 3) =
e) ( 17 + 9 ) - 8 - ( 11 + 4) =
f) 86 + ( 31 - 16 + 60 ) - ( 200 - 70 - 50 ) =
g) ( 79 + 21 - 84) + ( 63 - 41 + 17 ) - 26 =

8) Calcule o valor das expressões:

a) 10 – 1 + 8 – 4 =
b) 12 – 8 + 9 – 3 =
c) 25 – 1 – 4 – 7 =
d) 30 – ( 5 + 3 ) =
e) 15 + ( 8 + 2 ) =
f) 25 – ( 10 – 1 – 3 ) = (R: 19)
g) 45 – 18 + 3 + 1 – 2 = ( R: 29)
h) 75 – 10 – 8 + 5 – 1 = (R: 61)
i) 10 + 5 – 6 – 3 – 3 + 1 = (R: 4)
j) 23 – ( 2 + 8 ) – 7 = (R: 6)
k) ( 10 + 5 ) – ( 1 + 6 ) = ( R: 8)
l) 7 – ( 8 – 3 ) + 1 = (R: 3)
m) 25 – [ 10 + ( 7 – 4 ) ] = (R: 12)
n)32+ [ 10 – ( 9 – 4 ) + 8 ] =- (R: 45)
o) 45 – [ 12 – 4 + ( 2 + 1 )] = (R: 34)
p) 70 – { 20 – [ 10 – ( 5 – 1 ) ]} = (R: 56)
q) 28 + { 13 – [ 6 – ( 4 + 1 ) + 2 ] – 1 } = ( R: 37)
r) 53 – { 20 – [ 30 – ( 15 – 1 + 6 ) + 2 ]} = (R: 45)
s) 62 – { 16 – [ 7 – ( 6 – 4 ) + 1 ]} = (R: 52)
t) 20 – { 8 + [ 3 + ( 8 – 5 ) – 1 ] + 6} = (R: 1)
u) 15 + { 25 – [ 2 – ( 8 – 6 )] + 2 } = ( R: 42)
v) 56 – [ 3 + ( 8 – 2 ) + ( 51 – 10 ) + ( 7 - 2 )] = (R: 1)