Question

resolver:

1) -8 • (-7+3) =

2) (128-53) : (-3-12) =

3) (25:5)² =

4) (45+5)-5 =

5) -13+19-15 =

6) -9+5-4-6+1 =

7) 2+5-10-2 = ​

Answer 1

Respuesta:

-8 • (-7 + 3)

-8 • (-4)

=32

(128 - 53) : (-3 - 12)

75 : (-3 - 12)

75 : (-15)

=-5

(25 : 5)²

5²

=25

(45 + 5) - 5

50 - 5

=45

-13 + 19 - 15

-28 + 19

=-9

-9 + 5 - 4 - 6 + 1

-19 + 5 + 1

-19 + 6

=-13

2 + 5 - 10 - 2

5 - 10

=-5