Question

2 + {3 × 4 + [5 + 2 (9 - 2 2 )]}
2 + 3 × 5 + 6 ÷ 2
(8 - 4 + 10 - 3 2 ) × (-5 + 3 × 2)
7 × 2 + 4 (3 - 1)

Answer 1

1) 2+(12+(5+2(-13)))

   2+(12+(-21))

   2+(-9)=-7

2) 2+15+3=20

3) -18(-5+6)

   -18*1=-18

4) 14+4*2

    22

Espero haberte ayudado.