Question

a).[(16-22+1)-22+10]-0+30 b).{[(-40-5)+11+18]+21}+10-(2-3)

Answer 1

a) 
[(16-22+1)-22+10]-0+30
[-5-22+10] + 30
[-27+10]+30
-17+30
+13

b)
{[(-40-5)+11+18]+21}+10-(2-3)
{[-45+29]+21}+10+1
{-16+21}+11
5+11
+16