(-238+742)-42= 504-42= 46-(-356+145)-56= -(-211)-56= 211-56= 15(795-900)-795= 665-900-665= -90-(795-999)-990= -(-6)-0= (-48+101-29)-101+29 = 24-101+29 = -4-(-79-39+81)+81-39= -(-97)+81-39= 97+81-39= 139
(-238+742)-42= 504-42= 46
-(-356+145)-56= -(-211)-56= 211-56= 15
(795-900)-795= 665-900-665= -90
-(795-999)-990= -(-6)-0=
(-48+101-29)-101+29 = 24-101+29 = -4
-(-79-39+81)+81-39= -(-97)+81-39= 97+81-39= 139