RAZONAMIENTO MATEMATICO

1.-
2{3+5[-2(3+5)+6(-5+1)+3]+2(3-1)}+2

2{3+5[-37]+4}+2
2{3-185+4}+2
-356+2= -354

2.-
{3-2[6(5+3(2-4)+4)-3(2(5-1)+3)]+4}
{3-2[6(5+6-12)+4)-3(10-2+3)]+4}
{3-2[6(3)-3(11)+4}
{3-2[18-33]+4}
{3+30+4} =37

3.-
6+3{2[3(4-5)-2(7-2)+9(3(4+1)]-2}
6+3{2[(12-15-14+4)+9(12+3)]-2}
6+3{2[(-13+135)]-2}
6+3{2(122)-2}
6+3{244-2}
{6+726} =732

4.-
3{2+4[5-3(2+1)+6(-3+2)+2(3(5-1)+2)+3]-6}
3{2+4[5-6-3+6-18+12+2(15-3)+2)+3]-6}
3{2+4[5-6-3+6-18+12+30-6+2)+3}-6}
3{2+4[(22)+3)-6}
3{(2+88+3)-6}
3{93-6}
3{87} =261

5.-
2-3{2(4-1)+3[5+2(6-7)+3(5-8)+9]-7}
2-3{(8-2)+3[5+12-14+15-24+9]-7}
2-3{(8-2)+3[3]-7}
2-3{(8-2)+6)-7}
2-3{12-7}
2-3{5}
2-15 =-13