resposta dos exercícios em sala de aula no dia 18/08/2012 sabadão \o/
EXERCÍCIOS
1) Calcule o valor das expressões:
a) 7² - 4 = (R:45)
b) 2³ + 10 = (R:18)
c) 5² - 6 = (R:19)
d) 4² + 7⁰= (R:17)
e) 5⁰+ 5³= (R:126)
f) 2³+ 2⁴ = (R:24)
g) 10³ - 10² = (R:900)
h) 80¹ + 1⁸⁰ = (R:81)
i) 5² - 3² = (R:16)
j) 1⁸⁰ + 0⁷⁰ = (R:1)
2) Calcule
a) 3² + 5 = (R:14)
b) 3 + 5² = (R:28)
c) 3² + 5² = (R:34)
d) 5² - 3² = (R:16)
e) 18 - 7⁰ = (R:17)
f) 5³ - 2² = (R:121)
g) 10 + 10² = (R:110)
h) 10³ - 10² = (R:900)
i) 10³ - 1¹ = (R:999)
3) Calcule o valor das expressões
a) 2³ x 5 + 3² = (R:49)
b) 70⁰+ 0⁷⁰ - 1 = (R:0)
c) 3 x 7¹ - 4 x 5⁰ = (R:17)
d) 3⁴- 2⁴: 8 – 3 x 4 = (R:67)
e) 5² + 3 x 2 – 4 = (R:27)
f) 5 x 2² + 3 – 8 = (R:15)
g) 5² - 3 x 2² - 1 = (R:12)
h) 16 : 2 – 1 + 7² = (R:56)
4) calcule o valor das expressões:
a) 5² : ( 5 +1 -1)+ 4 x 2 = (R:13)
b) (3 +1)² +2 x 5 - 10⁰ = (R:25)
c) c) 3²: ( 4 – 1) + 3 x 2² = (R:15)
d) 70 –[ 5 x (2² : 4) + 3²] = (R:56)
e) ( 7 + 4) x ( 3² - 2³) = (R:11)
f) 5² + 2³ - 2 x (3 + 9) = (R:9)
g) 6² : 3² + 4 x 10 – 12 = (R:32)
h) (7² - 1 ) : 3 + 2 x 5 = (R:26)
5) calcule o valor das expressões:
a) 5 + 4²- 1 = (R:20)
b) 3⁴ - 6 + 2³ = (R:83)
c) 2⁵ - 3² + 1⁹ = (R:24)
d) 10²- 3² + 5 = (R:96)
e) 11² - 3² + 5 = (R:117)
f) 5 x 3² x 4 = (R:180)
g) 5 x 2³ + 4² = (R:56)
h) 5³ x 2² - 12 = (R:488)
6) Calcule o valor das expressões:
a) ( 4 + 3)² - 1 = (R:48)
b) ( 5 + 1 )² + 10 = (R:46)
c) ( 9 – 7 )³ x 8 = (R:64)
d) ( 7² - 5²) + ( 5² - 3 ) = (R:46)
e) 6² : 2 - 1⁴ x 5 = (R:13)
f) 3² x 2³ + 2² x 5² = (R:172)
7) Calcule o valor das expressões:
a) 4²- 10 + (2³ - 5) = (R:9)
b) 30 – (2 + 1)²+ 2³ = (R:29)
c) 30 + [6² : ( 5 – 3) + 1 ] = (R:49)
d) 20 – [6 – 4 x( 10 - 3²) + 1] = (R:17)
e) 50 + [ 3³ : ( 1 + 2) + 4 x 3] = (R:71)
f) 100 –[ 5² : (10 – 5 ) + 2⁴ x 1 ] = (R:79)
g) [ 4² + ( 5 – 3)³] : ( 9 – 7)³ = (R:3)
h) 7²+ 2 x[(3 + 1)² - 4 x 1³] = (R:73)
i) 25 + { 3³ : 9 +[ 3² x 5 – 3 x (2³- 5¹)]} = (R:64)
8) Calcule as expressões:
a) ( 8 : 2) . 4 + {[(3² - 2³) . 2⁴ - 5⁰] . 4¹}= (R:76)
b) ( 3² - 2³) . 3³ - 2³ + 2² . 4² = ( R:83)
c) ( 2⁵ - 3³) . (2² - 2 ) = (R: 10)
d) [2 . (10 - 4² : 2) + 6²] : ( 2³ - 2²) = ( R:10)
e) (18 – 4 . 2) . 3 + 2⁴ . 3 - 3² . ( 5 – 2) = (R: 51)
f) 4² . [2⁴ : ( 10 – 2 + 8 ) ] + 2⁰ = (R: 17)
g) [( 4² + 2 . 3²) + ( 16 : 8)² - 35]² + 1¹⁰ - 10⁰ = (R : 9)
h) 13 + ( 10 – 8 + (7 – 4)) = (R: 18)
i) (10 . 4 + 18 – ( 2 . 3 +6)) = (R:46)
j) 7 . ( 74 – ( 4 + 7 . 10)) = (R: 0)
k) ( 19 : ( 5 + 3 . 8 – 10)) = (R : 1)
l) (( 2³ + 2⁴) . 3 -4) + 3² = (R: 77)
m) 3 + 2 . [(3²- 2⁰) + ( 5¹ - 2²)] + 1 = (R: 22)
9) Calcule as expressões:
a) 7 – ( 1 + 3) = (R:3)
b) 9 – ( 5 – 1 + 2) = (R: 3)
c) 10 – ( 2 + 5 ) + 4 = (R: 7)
d) ( 13 – 7 ) + 8 – 1 = (R: 13)
e) 15 – ( 3 + 2) – 6 = (R: 4)
f) ( 10 – 4 ) – ( 9 -8) + 3 = (R: 8)
g) 50 – [ 37 – ( 15 – 8 ) ] = (R: 20)
h) 28 + [50 – (24 – 2) -10 ] = (R: 46)
i) 20 + [ 13 + (10 – 6) + 4] = (R: 41)
j) 52 – { 12 + [ 15 – ( 8 – 4)]} = (R: 29)
l) 25 + { 12 + [ 2 – ( 8 – 6 ) + 2 ]} = (R: 39)
m) { [ ( 18 – 3 ) + ( 7 + 5) – 2 ] + 5 } – 12 = (R:18)
n) 65 – { 30 – [ 20 – ( 10 – 1 + 6) + 1 ]} = (R: 41)
o)45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } = (R:54)
p) 40 + { 50 – [35 – ( 25 +5) – 1 ]} + 7 = (R:93)
q)38 – { 20 – [ 22 – ( 5 + 3) + ( 7 – 4 +1)]} = ( R:36)
r) 26 + { 12 – [ ( 30 – 18) + ( 4 – 1) – 6 ] – 1 } = (R::28)
s) 25-[10 + (7 - 4)] = (R:12)
t) 32+ [10-(9-4)+8] = (R:45)
u)45-[12-4+(2+1)] = (R:31)
v)70-{20-[10-(5-1)]} = (R:56)
x) 28 + {13 - [6 -(4 + 1) + 2] - 1 } = (R:37)
z) 53-{20-[30-(15-1+6) + 2 ]} = (R:45)
11) Calcule as expressões:
a) 1 – [7 – (4 – 3 . 2 ) . (-1 – 1)] . 5
b) 125 : (-5) : (-5)
c) (-64) : (-4) : (-4)
d) 5 + ( -3)² + 1 = (R:15)
e) 10 + (-2)³ -4 = (R:-2)
f) 12 – 1 + (-4)² = (R:27)
g) (-1)⁵ + 3 – 9 = (R:-7)
h) 18 – (+7) + 3² = (R:20)
i) 6 + (-1)⁵ - 2 = (R:3)
j) (-2)³ - 7 – (-1) = (R:-14)
l) (-5)³ - 1 + (-1)⁹ = (R:-127)
m) 5⁰ - ( -10) + 2³ = (R:19)
n) (-2)³ + (-3)² - 25 = (R:-24)
12) Calcule o valor das expressões:
a) 3 - 4² + 1 = (R:-12)
b) 2³ - 2² - 2 = (R:2)
c) (-1)⁴ + 5 - 3² = (R:-3)
d) 5⁰ - 5¹ - 5⁰ = (R:-5)
e) (-3)². (+5) + 2 = (R:47)
f) (-1)⁷ - (-1)⁸ = (R:-2)
g) 5 + (-3)² + 7⁰ = (R:15)
h) √49 + 2³ - 1 = (R:14)
13) Calcule o valor das expressões:
a) (-3)² + 5 = (R:14)
b) (-8)² - (-9)² = (R:-17)
c) -72⁰ + (-1)⁸ = (R:0)
d) (-12)⁰ + (+12)⁰ = (R:2)
e) 10³ - (-10)² - 10⁰ = (R:899)
f) (-7)² + (-6)² - (-1)² = (R:84)
g) (-1)⁶ + (+1)⁵ + (-1)⁴ + (+1)³ = (R:4)
h) 2⁶ - 2⁵ - 2⁴ - 2³ - 2² - 2 = (R:2)
14) Calcule o valor das expressões:
a) (-3) . (+7) + (-8) . (-3) = (R:3)
b) (-3)³ + (+2)² - 7 = (R:-30)
c) 8 + (-3 -1)² = (R:24)
d) (-2 + 6)³ : (+3 – 5)² = (R:16)
e) –(-5)² + (-7 + 4) = (R:-28)
f) (-2)⁶ + (+5) . (-2) = (R:54)
15) Calcule o valor das expressões:
a) (-3)³ . (-2)² + (3) + 5⁰ = (R:-110)
b) (-1)³ + 3 + (+2) . (+5) = (R:12)
c) (-2) . (-7) + (-3)² = (R:23)
d) 2 . (-5)² - 3 . (-1)³ + 4 = (R:57)
e) –[ -1 + (-3) . (-2)]² = (R:-25)
f) –(5 – 7)³ - [ 5 - 2² - (4 – 6)] = (R:5)
g) (-3 + 2 – 1)³ - ( -3 + 5 – 1)⁸ + 3 = (R:-6)
h) 8 – [ -7 + )-1) . (-6) + 4]²= (R:-1)
i) 14 – [(-1)³ . (-2)² + (-35) : (+5)] = (R:25)
j) 5³ - [ 10 + (7 -8)² ]² - 4 + 2³ = (R:8)
k) (-1)⁸ + 6⁰ - [15 + (-40) : (-2)³ ] = (R:-18)
l) -3 –{ -2 – [(-35) : (+5) + 2² ]} = (R:-4)
16) Calcule o valor das expressões:
a) (- 3 + 5 + 2) : (-2) = (R:-2)
b) (+3 – 1)² - 15 = (R:-11)
c) (-2)³ - (-1 + 2)⁵ = (R:-9)
d) 40 : (-1)⁹ + (-2)³ - 12 = (R:-60)
e) 10 – [5 – (-2) + (-1)] = (R:4)
f) 2 – { 3 + [ 4 – (1 – 2) + 3 ] – 4} = (R:-5)
g) 15 – [ (-5)² - (10 - 2³ ) ] = (R:-8)
h) 13 – [(-2) – (-7) + (+3)² ] = (R:-1)
i) 7² - [ 6 – (-1)⁵ - 2²] = (R:46)
j) 2³ - [(-16) : (+2) – (-1)⁵] = (R:15)
k) 50 : { -5 + [ -1 –(-2)⁵ : (-2)³ ]} = (R:-5)
17) Calcule o valor das expressões:
a) 10 + (-3)² = (R:19)
b) (-4)² - 3 = (R:13)
c) 1 + (-2)³ = (R:-7)
d) -2 + (-5)² = (R:23)
e) (-2)² + (-3)³ = (R:-23)
f) 15 + (-1)⁵ - 2 = (R:12)
g) (-9)² -2 – (-3) = (R:82)
h) 5 + (-2)³ + 6 = (R:3)
18) Calcule o valor das expressões:
a) 5 – { +3 – [(+2)² -(-5)² + 6 – 4 ]} = (R:-17)
b) 15 – { -3 + [(5 – 6)² . (9 -8 ) ² + 1]} = (R:16)
c) 18 – { 6 – [ -3 – (5 – 4) – (7- 9)³ ] – 1 } = (R:17)
d) -2 + { -5 –[ -2 – (-2)³ - 3- (3 -2 )⁹ ] + 5 } = (R:-4)
e) 4 – {(-2)² . (-3) – [ -11 + (-3) . (-4)] – (-1)} = (R:16)
19) Efetue as subtrações:
a) (+5/7) – (+2/3) = (R: 1/21)
b) (+2/3) – (+1/2) = (R: 1/6)
c) (+2/3) – (+4/5) = (R: -2/15)
d) (-7/8) – (-3/4) = (R: -1/8)
e) (-2/5) – (-1/4) = (R: -3/20)
f) (-1/2) – (+5/8) = (R: -9/8)
g) (+2/3) – ( (+1/5) = (R: 7/15)
h) (-2/5) – ( +1/2) = (R: -9/10)
20) Efetue as subtrações:
a) (+1/2) – (+5) = (R: -9/2)
b) (+5/7) – (+1) = (R: -2/7)
c) 0 – ( -3/7) = (R:3/7)
d) (-4) – (-1/2) = (R: -7/2)
e) (+0,3) – (-1/5) = (R: ½)
f) (+0,7) – (-1/3) = (R:31/30)
22) Calcule o valor de cada expressão:
a) 3/5 – 1 – 2/5 = (R: -4/5)
b) 3/5 – 0,2 + 1/10 = (R: ½)
c) -3 – 2 – 4/3 = (R: -19/3)
d) 4 – 1/10 + 2/5 = (R: 43/10)
e) 2/3 – ½ -5 = (R: 29/6)
f) -5/12 – 1/12 + 2/3 = (R: 1/6)
g) -1/3 + 2/9 – 4/3 = (R: -13/9)
h)-4 + ½ - 1/6 = (R:-11/3)
i) 0,3 + ½ - ¾ = (R: 1/20)
j) 1 + ¼ - 3/2 + 5/8 = (R: 3/8)
k) 0,1 + 3/2 – ¼ + 2 = (R: 67/20)
l) ¾ + 0,2 – 5/2 – 0,5 = ( R: - 41/20)
Parabéns para todos que não erraram nenhuma.
a quem errou refaça ate chegar nos resultados
boa sorte
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