Question

Resolva as expressoes numericas abaixo.
a)7-(1+3)=
b)9-(5-1+2)=
c)(13-7)+8-1=
d)50-[37-(15-8)]=
e)28+[50-(24-2)-10]=
f)52-{12+[15-(8-4)]}=
g)25+{12+[2-(8-6)+2]}=
h)65-{30-[20-(10-1+6)+1]}=
i)45+{15-[(10-8)+(7-4)-3]-4}=
j)40+{50-[35-(25+5)-1]}+7=
k)38-{20-[22-(5+3)+(7-4+1)]}=
l)5ao quadrado+2ao cubo-2×(3+9)=
m)6ao quadrado÷3ao quadrado+4×10-12=
n)(7ao quadrado-1)÷3+2×5=
o)4ao quadrado-10 + (2ao cubo- 5)=
p)30-(2+1)ao quadrado +2ao cubo=

Answer 1

a)7 - (1 + 3 ) = 7 - 4 = 3
b)9 - (5 - 1 + 2 = 9  - 6 = 3
c)(13 - 7 ) + 8 - 1 = 6 + 7 = 13
d)50 - [37 - (15 - 8)] =50 - [37 - 7] = 50 - 30 = 20
e)28 + [50 - (24 - 2 ) - 10]=
28 + [50 - 22 - 10] =  28 + [50 - 32] = 28 + 18 = 46
f)52 - {12 + [15 - (8 - 4)]}=
 52 - {12 + [15 - 4 ]} = 52 - {12 + 11} = 52 - 23 = 29
g)25 + {12 + [2 - (8 - 6 ) + 2 ]} = 
 25 + {12 + [2 - 2 + 2 ]}
 25 + {12  + 2} = 25 + 14 = 39
h)65 - {30 - [20 - (10 - 1 + 6 ) + 1 ]}=
 65 - { 30 - [20 - 15 + 1 ]} =
 65 - { 30 - 6 } = 65 - 24 = 41
i)45 + {15 - [(10 - 8 ) + (7 - 4 ) - 3 ] - 4 } = 
 45 + { 15 - [2 + 3 -3] - 4 } = 
 45 + {15 -  2  - 4 } = 
 45 + {15 - 6 } = 45 + 9 = 54
j)40 + { 50 - [35 - (25 + 5 ) - 1]}  + 7 = 
  40 + {50 - [35 - 30 - 1 ]} + 7 = 
 40 + { 50 - [35 - 31]} + 7 = 40 + {50 - 4} + 7 = 40 + 46 + 7 = 86 + 7 = 93
k)38 - {20 - [22 - (5 + 3 ) + (7 - 4 + 1 )]} = 
   38 - {20 - [22 - 8 + 4]} = 
  38 - { 20 - [14 + 4 ]} = 
 38 - {20 - 18 } = 38 - 2 = 36
l)5² + 2 ³ - 2 ( 3 + 9) = 25 + 8 - 2 (12) = 25 + 8  - 24 = 33 - 24 = 9
m)6² : 3² + 4 *10 - 12 = 
36 : 9 + 40 - 12 = 
 4 + 40 - 12 = 44 - 12 = 32
n)(7² - 1 ) : 3 + 2*5 = (49 - 1 ) : 3 + 10 = 48 : 3  + 10 = 16 + 10 = 26
o)4² - 10 + (2³ - 5 ) = 16 - 10 + (8 - 5 ) = 16 - 10 + 3 = 6 + 3 = 9
p)30 - (2 + 1 )² + 2 ³ = 30 - 3² + 2³ = 30 - 9 + 8 = 21 + 8 = 29

Answer 2

a) 7 - (1 + 3)

= 7 - 4
= 3
==============================
b) 9 - (5 - 1 + 2)

= 9 - (4 + 2)
= 9 - 6
= 3
==============================
c) (13 - 7) + 8 - 1

= 6 + 7
= 13
===============================
d) 50-[37-(15-8)]

= 50 - [37 - 7]
= 50 - 30
= 20
===============================
e) 28+[50-(24-2)-10]

= 28 + [50 - 22 - 10]
= 28 + [50 - 32]
= 28 + 18
= 46
===============================
f) 52-{12+[15-(8-4)]}

= 52 - {12 +[15 - 4]}
= 52 - {12 + 11}
= 52 - 23
= 29
===============================
g) 25+{12+[2-(8-6)+2]}=

= 25 + {12 + [2 - 2 + 2]}
= 25 + {12 + 2}
= 25 + 14
= 39
===============================
h) 65-{30-[20-(10-1+6)+1]}=

= 65 - {30 - [20 - 15 + 1}
= 65 - {30 - 6}
= 65 - 24
= 41
===============================
i) 45+{15-[(10-8)+(7-4)-3]-4}=

= 45 + {15 - [ 2 + 3 - 3] - 4}
= 45 + {15 - 2 - 4}
= 45 + 9
= 54
===============================
j) 40+{50-[35-(25+5)-1]}+7=

= 40 + {50 - [35 - 30 - 1]} + 7
= 40 + { 50 - 4 } + 7
= 40 + 46 + 7
= 93
===============================
k) 38-{20-[22-(5+3)+(7-4+1)]}=

= 38 - {20 - [22 - 8 + 4]}
= 38 - {20 - 18}
= 38 - 2
= 36
===============================
l) 5² +2³ -2×(3+9)=

= 25 + 8 - 2 × 12
= 25 + 8 - 24
= 9
===============================
m) 6²÷ 3²+4×10-12=

= 36 ÷ 9 + 40 - 12
= 4 + 28
= 32
===============================
n) (7² - 1)÷3+2×5=

= (49 - 1) ÷ 3 + 10
= 48 ÷ 3 + 10
= 16 + 10
= 26
===============================
o) 4²- 10 + (2³ - 5)=

= 16 - 10 + (8 - 5)
= 6 + 3
= 9
===============================
p) 30- (2+1)² + 2³=

= 30 - 3² + 8
= 30 - 9 + 8
= 21 + 8
= 29
===============================


★Espero ter ajudado!! tmj