100-(50+25)=25
37-(13-7)=31
65-(48-8)=25
50-(10+8)=32
100-(50+25)=25;
37-(13-7)= 31;
65-(48-8)=25;
50-(10+8)=32.
100-(50+25)=25
37-(13-7)=31
65-(48-8)=25
50-(10+8)=32
100-(50+25)=25;
37-(13-7)= 31;
65-(48-8)=25;
50-(10+8)=32.