小红做了4件好事,小冬、小青和小红做的好事同样多,他们一共做了多少件好事?3z4`5v7Q(L,s,@
算式:提示5z*V6t4t1\(p0d){3z4`5v7Q(L,s,@
答;他们一共做好事.B0Y'Q/H:V9S;E*R6S件。3z4`5v7Q(L,s,@