Question

3) Calcule o valor das seguintes expressões:
1) 15-(3-2) + (7-4) -
2) 25-(8-5+3) - (12-5-8) -
3) (10-2)-3+(87-5) -
4) (9-4-2)-1+(9+5 -3) -
5) 18-12 + (7-3-8)- 101 -
6) -4 1-3+(-5-9-2)]=
7) -6 -110 + (-8-3) -1] -
8) -8-1-2-(-12)+31
9) 25-(-2+[6+ (-4-1)] -
10) 17-5-3218-(-1-3) +5]) =​

Answer 1

Resposta:

1) 25

2) 20

3) 85

4) 13

5) 99

6) ?

7) -127

8) 8

9) 16

10) -3205

Explicação passo-a-passo:

1) 15 - (3-2) + (7+4)

15 - 1 + 11

25

2) 25 - (8-5+3) - (12-5-8)

25 - 6 - (-1)

20

3) (10-2) -3 + (87-5)

8 - 3 + 82

85

4) (9-4-2) -1 + (9 +5-3)

3 -1 + 11

13

5) 18 -12 + (7-3-8) - 101

18 -12 + (-4) - 101

6 + (-4) - 101

6 - 4 - 101

99

6) ?

7) -6 -110 + (-8-3) - 1]

-6 -110 - 11 -1]

-127

8) -8 -1 -2 -(12) + 31

-8 -1 -2 -12 + 31

-23 + 31

8

9) 25 - (-2 + [6 + (-4-1)]

25 - (-2 + [6 + 5)]

25 - (-2 + 6 +5)

25 - 9

16

10) 17 -5 - 3218 -(-1-3) + 5])

17 -5 -3218 -4 + 5]

12 -3218 -4 +5

-3206 -4 +5

-3210 +5

-3205