Question

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Answer 1

Actividad 8

1.

7² - 5 (7)/2³ + 6 + 4 - 1 =

49 - 35/8 + 6 + 4 - 1

14/14 + 4 - 1

1 + 4 - 1 = 4

2.

40.5/5 + 2 (12.3 - 8.35) =

8.1 + 2 × 3.95

8.1 + 7.9 = 16

3.

2³ - 4 (3)/2² + (13.45 - 0.45) - 1 =

8 - 12/4 + 13 - 1

- 4/4 + 13 - 1

- 1 + 13 - 1 = 11

Actividad 9

A

18 24 40/2

9 12 20/2

9 6 10/2

9 3 5/3

3 1 5/3

1 5/5

1

m.c.m = 2³ × 3² × 5 = 2 × 2 × 2 × 3 × 3 × 5 = 360

18 24 40/2

9 12 20/

m.c.d = 2

B

7 10 14/2

7 5 7/5

7 1 7/7

1 1

m.c.m = 2 × 5 × 7 = 70

7 10 14/

m.c.d = 1

C

3 6 12/2

3 3 6/2

3 3 3/3

1 1 1

m.c.m = 2² × 3 = 2 × 2 × 3 = 12

3 6 12/3

1 2 4

m.c.d = 3

D

14 38 56/2

7 19 29/7

1 19 29/19

1 29/29

1

m.c.m = 2 × 7 × 19 × 29 = 7714

14 38 56/2

7 19 29

m.c.d = 2

E

24 48 56 168/

12 24 28 84/

6 12 14 42/

3 6 7 21/

3 3 7 21/

1 1 7 7/

1 1

m.c.m = 2⁴ × 3 × 7 = 2 × 2 × 2 × 2 × 3 × 7 = 336

24 48 56 168/2

12 24 28 84/2

6 12 14 42/2

3 6 7 21

m.c.d = 2³ = 2 × 2 × 2 = 8