Question

1) 2 + 8 –3 –5 + 15 =
2) 12 + [35 -(10 + 2) +2] =
3) [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6 =
4)37 + [-25 –(-11 + 19 –4)] =
5)60 ÷ {2 · [-7 + 18 ÷ (-3 + 12)]} –[7 · (-3) –18 ÷ (-2) + 1] =
6)-8 + {-5 + [(8 –12) + (13 + 12)] –10} =
7)3 –{2 + (11 –15) –[5 + (-3 + 1)] + 8} =
8)[-1 + (22–5 · 6)] ÷ (-5 + 2) + 1 =
9)[$\sqrt{100$–(24–8)· 2 –24]÷[22–(-3 + 2)] = 1
0){[(8 · 4 + 3) ÷ 7 + (3 + 15 ÷ 5) · 3] · 2 –(19 –7) ÷ 6} · 2 + 12 =

Answer 1

Resposta:

1) 17

2) 37

3) 3

4) 8

5) 5

6) -2

7) 0

8) 4

9) -2

0) 100

Explicação passo-a-passo:

1) 2 + 8 - 3 - 5 + 15

10 - 3 - 5 + 15

7 - 5 + 15

2 + 15

17

2) 12 + [35 - (10 + 2) + 2]

12 + [35 - 12 + 2]

12 + [23 + 2]

12 + 25

37

3) [(18 + 3 * 2) : 8 + 5 * 3] : 6

[(18 + 6) : 8 + 5 * 3] : 6

[24 : 8 + 5 * 3] : 6

[3 + 15] : 6

18 : 6

3

4) 37 + [-25 - (-11 + 19 - 4)]

37 + [-25 - (8 - 4)]

37 + [-25 - 4)]

37 + [-29]

37 - 29

8

5) 60 : {2 * [-7 + 18 : (-3 + 12)]} - [7 * (-3) - 18 : (-2) + 1]

60 : {2 * [-7 + 18 : 9]} - [7 * (-3) - 18 : (-2) + 1]

60 : {2 * [-7 + 2]} - [7 * (-3) - 18 : (-2) + 1]

60 : {2 * [-5]} - [7 * (-3) - 18 : (-2) + 1]

60 : {-10} - [7 * (-3) - 18 : (-2) + 1]

60 : {-10} - [-21 - 18 : (-2) + 1]

60 : {-10} - [-21 - (-9) + 1]

60 : {-10} - [-21 + 9 + 1]

60 : {-10} - [-12 + 1]

60 : {-10} - [-11]

60 : {-10} + 11

-6 + 11

5

6) -8 + {-5 + [(8 - 12) + (13 + 12)] - 10}

-8 + {[-5 + (-4) + (13 + 12)] - 10}

-8 + {[-5 + (-4) + 25] - 10}

-8 + {[-5 - 4 + 25] - 10}

-8 + {[-9 + 25] - 10}

-8 + {16 - 10}

-8 + 6

-2

7) 3 - {2 + (11 - 15) - [5 + (-3 + 1)] + 8}

3 - {2 + (-4) - [5 + (-3 + 1)] + 8}

3 - {2 - 4 - [5 + (-2)] + 8}

3 - {2 - 4 - [5 - 2] + 8}

3 - {2 - 4 - 3 + 8}

3 - {-2 - 3 + 8}

3 - {-5 + 8}

3 - 3

0

8) [-1 + (22 - 5 * 6)] : (-5 + 2) + 1

[-1 + (22 - 30)] : (-5 + 2) + 1

[-1 + (-8)] : (-5 + 2) + 1

[-1 - 8] : (-5 + 2) + 1

[-1 - 8] : (-3) + 1

[-9] : (-3) + 1

3 + 1

4

9) [√100 - (24 - 8) * 2 - 24] : [22 - (-3 + 2)]

[10 - (24 - 8) * 2 - 24] : [22 - (-3 + 2)]

[10 - 16 * 2 - 24] : [22 - (-3 + 2)]

[10 - 16 * 2 - 24] : [22 - (-1)]

[10 - 32 - 24] : [22 + 1]

[-22 - 24] : [22 + 1]

[-46] : [23]

-2

0) {[(8 * 4 + 3) : 7 + (3 + 15 : 5) * 3] * 2 - (19 - 7) : 6} . 2 + 12

{[(32 + 3) : 7 + (3 + 15 : 5) * 3] * 2 - (19 - 7) : 6} . 2 + 12

{[35 : 7 + (3 + 15 : 5) * 3] * 2 - (19 - 7) : 6} . 2 + 12

{[35 : 7 + (3 + 3) * 3] * 2 - (19 - 7) : 6} . 2 + 12

{[35 : 7 + 6 * 3] * 2 - (19 - 7) : 6} . 2 + 12

{[35 : 7 + 6 * 3] * 2 - 12 : 6} . 2 + 12

{[5 + 18] * 2 - 12 : 6 } . 2 + 12

{23 * 2 - 12 : 6} . 2 + 12

{46 - 12 : 6} . 2 + 12

{46 - 2} . 2 + 12

44 . 2 + 12

88 + 12

100