Question

Me ajudem por favor !!!!



1) 2 + 8 - 3 - 5 + 15 =

2) 12 + [ 35 - ( 10 + 2 ) + 2 ] =

3) [ ( 18 + 3 x 2 ) ÷ 8 + 5 x 3 ] ÷ 6 =

4) 37 + [ - 25 - ( - 11 + 19 - 4 ) ] =

5) 60 ÷ { 2 x [ - 7 + 18 ÷ ( - 3 + 12 ) ] } - [ 7 x ( - 3 ) - 18 ÷ ( - 2 ) + 1 ] =

6) - 8 + { - 5 + [ ( 8 - 12 ) + ( 13 + 12 ) ] - 10 =

7) 3 - { 2 + ( 11 - 15 ) - [ + 5 ( - 3 + 1 ) ] + 8 } =

8) [ - 1 + ( 22 - 5 x 6 ) ] ÷ ( - 5 + 2 ) + 1 =

9) [ - ( 24 - 8 ) x 2 - 24 ] ÷ [ 22 - ( - 3 + 2 ) ] =

10) { [ ( 8 x 4 + 3 ) ÷ 7 + ( 3 + 15 ÷ 5 ) x 3 ] x 2 - ( 19 - 7 ) ÷ 6 } x 2 + 12 =

Answer 1

1) 2 + 8 - 3 - 5 + 15 = 
=10-3-5+15=
=7-5+15=
=2+15=
=17

2) 12 + [ 35 - ( 10 + 2 ) + 2 ] =
=12+ [ 35- 12+2]=
=12+ [23+2]=
=12+25=
37

3) [ ( 18 + 3 x 2 ) ÷ 8 + 5 x 3 ] ÷ 6 =
= [(18+6)_8+ 5x3]_6=
=[24_8+5x3]_6=
=[3+15]_6=
=18_6=
=3