Question

C) 22-{22-[22-(40-22)+(88-22)-(88-40)];
D) 400-{[23-100)]-[59+(-259+100)]+10};
E) {1 200-[800+(-1 450+ 750)-(390+210)]}400;
F)1-{2+(3-4)-[6-(7-8)+(9-10)]-11}+12.

Answer 1

c)22-(22-22-(40-22)+(88-22)-(88-40)=22-(22-18+16+66-88-40)=22-(-58)=22+58=80