Question

ACTIVIDADES DE REFUERZO a) 8 · [-5 · (-2 + 4) – (5 – 3)] ÷ (-4) =

b) 28 – [(7 – 2) · (15 – 21)] + 6 · (-4) =

c) (8 – 14) ÷ [(7 – 12) + (15 – 12)] · 7 =

d) [-17 + (11 – 16)] – [(-2 + 7) · (25 – 20)] =

e) 3(4 + 2 . 3 ) + 2( 10 ÷ 5 + 2 ) – 4( 5 + 4 – 3 )=

f) 4 5 + 1 . 2 ) + 3( 9 ÷ 3 + 2 ) – 2( 6 + 5 – 7 )=


g) 3(4 - 2 + 3 ) + 2( 5 ÷ 5 + 3 ) + 4( 5 . 4 – 10 )=

h) 2(4 . 2 - 3 ) + 2( 10 ÷ 5 + 3 ) + 3( 3 . 4 – 10 )


= i) [(4 + 3 ) - ( 8 – 3 )] – ( 4 + 7 – 11 )=

j) 3(4 + 2 . 3 ) + 2( 10 ÷ 5 + 2 ) – 4( 5 + 4 – 3 )=

k) 3 (4 x 2 – 3) – ( 4 + 6 : 3) ayuda a doy coronaaaaaaaaa ​

Answer 1

Respuesta:

Explicación paso a paso:

a) 8 · [-5 · (-2 + 4) – (5 – 3)] ÷ (-4)

8(-5x2-2) ÷ (-4)

8(-10-2) ÷ (-4)

8(-12) ÷ (-4)

= 24

b) 28 – [(7 – 2) · (15 – 21)] + 6 · (-4)

28-(5x(-6)) - 24

28 - (30) - 24

28 + 30 - 24

= 34  

c) (8 – 14) ÷ [(7 – 12) + (15 – 12)] · 7

-6 ÷ ((-5)+3) x 7

-6  ÷ (-5 + 3) x 7

-6  ÷  (-2) x 7

= 21

d) [-17 + (11 – 16)] – [(-2 + 7) · (25 – 20)]

(-17  ÷  (-5)) - (5 x 5)

3,4 - 25

= -21,6

e) 3(4 + 2 . 3 ) + 2( 10 ÷ 5 + 2 ) – 4( 5 + 4 – 3 )

3 x 10 + 2 x 4 - 24

30 + 8 - 24

= 14