Mismatch of tax free interest between Fed and CA

I need to split income between two states so trying to match turboTax numbers to various 1099s. When I look at Fed Tax free interest from Muni Bonds (interest minus bond premium) it does not match what gets transferred to CA form--for either myself or my daughter. It's not off a lot -like $3 for me and $8 for my daughter but without a good match makes it hard to figure out what goes into the numbers so we can split the income. It looks like should be a direct pass over number but isn't. Is this a glitch? A rounding thing? In addition the amounts on the CA interest worksheet don't seem to match CA versus non-CA interest compared to my statements. So is there something tricky there I need to do?

 

I think ultimately what I need to do apply the bond premium to each coupon payment and them split based on dates so interest and bond premium gets allocated properly but without matching numbers.......