I have temporary custody of my 2 children they havent been with their mom since august of 2015 now, I claim my son every year but do I claim my daughter this year too.

Their mom hasnt had them since august and just got a job after they werent there before hand I bought everything for them they stayed on some weekends and during the week. I got temporary custody I know I probably cant get the credit for them but am I able to claim my daughter as a dependent as well since shes in my custody now.