Question

Resolver las siguientes operaciones combinadas

1) 18:2 + 25 . 2 – (18 – 40:5) =

2) ( 7 . 8 – 26) – 24 : 6 + 100 : 25 =

3) 81 : 3 + 49:7 – 63 : 9 =

4) 121:11 + (8.5 : 2 – 5) – 64 : 8 =

5) (12 + 6 – 4 ) : 2 + 3 . (18-10 + 3) – 4 =

6) (3.5 – 9) . 8 – 27 : 9 + 36 : (6 – 4 ) =

Answer 1

Respuesta:

1) 18:2 + 25 . 2 – (18 – 40:5) =

9+50-(18-8)

9+50-(10)

9+50-10

59-10

49

2) ( 7 . 8 – 26) – 24 : 6 + 100 : 25 =

(56-26)-4+4

30-4+4

30

3) 81 : 3 + 49:7 – 63 : 9 =

27+7-7

27

4) 121:11 + (8.5 : 2 – 5) – 64 : 8 =

11+(40:2-5)-8

11+(20-5)-8

11+15-8

26-8

18

5) (12 + 6 – 4 ) : 2 + 3 . (18-10 + 3) – 4 =

(18-4):2+3.(8+3)-4

14:2+3.11-4

7+33-4

40-4

36

6) (3.5 – 9) . 8 – 27 : 9 + 36 : (6 – 4 ) =

(15-9).8-3+36:(2)

6.8-3+18

48-3+18

45+18

63