Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Digues quines de les següents afirmacions són certes.: -7-13=1-#a3; -#a3=-343; 7-3=343; -7-3=-1343; -7-3=343
Right answer summary: -7-13=1-#a3; -#a3=-343; -7-3=-1343
Question state: todo