Should i "ration" how much my baby eats while i'm at work?

I only feed Emma for a week, but I am going to try and help you. Emma is on formula and at that age she would drink six ounces, but if she only had four she would not cry. To try and keep her on milk only, try giving her a three ounce bottle. See if she cries after it is taken away for more than a minute or so. If she does, you'll have to give her more. If not, she can make up for it when you get home.