resolva:
a) 3+5²=
b)(3+5)²
c)5²+3-3×(2³-1)÷21
d)[(12+8)÷(4+1)]³
e)4²×[2⁴÷(10-2+8)]+2°
f){20-[6+(4+1)×2]+1}×3
g){2+[(3-1)×(3+3)]÷4}
h)4+{8+2×[3+(10×2×7)÷8]}
i){[(20÷10×2)+5]÷3}+2³
j)3+{[(4+5)×2]÷3}×5²
k){2×[7-(4+1)÷5]÷4}²
L)(3²-2³)×3³-2³+2²×4²
m)2²+4+3×(2²-3)
n)10÷{2+[(2⁴+2³)-4]}×3
Soluções para a tarefa
Resolva:
a) 3+5²=
3 + 25 = 28
b)(3+5)²
(3 + 5)²
(8)² = 64
c)
5²+3-3×(2³-1)÷21
25 + 3 - 3(8 - 1) : 21
28 - 3(7) : 21
28 - 21: 21 =
28 - 1 = 27
d)
[(12+8)÷(4+1)]³
[(20) : (5)]³
[ 4]³ = 4x4x4 = 64
e)
4²×[2⁴÷(10-2+8)]+2°
16 x[16 :(8 + 8)] + 1
16x[16:(16)] + 1
16x[1] = 1
16 + 1= 17
f)
{20-[6+(4+1)×2]+1}×3
{20 -[6 + (5)x2] + 1} x 3
{20 -[ 6 + 10 + 1}x 3
{20 - [17]}x3
{20 - 17}x3
{ 3} x 3
3x3 = 9
g)
{2+[(3-1)×(3+3)]÷4}
{2 + [(2)x(6)] : 4 }
{2 +[ 12 ] : 4 }
{ 2 + 12 : 4 }
{2 + 3}
2 + 3 = 5
h)
4+{8+2×[3+(10×2×7)÷8]}
4+{ 8 + 2x[3 +(140) : 8]}
4 + {8 + 2x[ 3 + 17,5]}
4 +{ 8 + 2x[20,5}]
4 +{ 8 + 41}
4 + { 49}
4 + 49 = 53
i)
{[(20÷10×2)+5]÷3}+2³
{[(2x2) + 5]: 3 } + 8
{[4 + 5] : 3 } + 8
{ 9 : 3 } + 8
{3} + 8
3 + 8 = 11
j)
3+{[(4+5)×2]÷3}×5²
3 + {[(9) x 2] : 3 } x 25
3 + {[ 18] : 3 } x 25
3 + {18 : 3} x 25
3 + 6 x 25
3 + 150 = 153
k)
{2×[7-(4+1)÷5]÷4}²
{2 x [7 - (5) : 5:} 4}²
{2 x (7 - 1) : 4 } ²
{2 x (6) : 4 }²
{ 12 : 4}²
{3}² = 3x3 = 9
L)
(3²-2³)×3³-2³+2²×4²
(9 - 8)x27 - 8 + 4x 16
(1)x27 - 8 + 64
27 - 8 + 64
27 + 56 = 83
m)
2²+4+3×(2²-3)
4 + 4 +3x(4 - 3)
8 + 3x(1)
8 + 3 = 11
n)
10÷{2+[(2⁴+2³)-4]}×3
10: {2 + [(16 + 8)´- 4 ]} x 3
10 : {2 + [(24) - 4]} x 3
10 : { 2 + [ 24 - 4]} x 3
10 : { 2 + [20]} x 3
10: { 2 + 20} x 3
10 : { 22} x 3
10 : 22 x 3 mesmo que
10
----- x 3
22
(10)3
--------
22
30
------ divide AMBOS por 2
22
15/11
10 : { 2 + [24] } x 3
10: { 2 + 24} x 3
10 : {26} x 3