Deductions & credits

Thanks for clarification. I see the child credit at line 28 as $3300. But please look at my 1040 preview below here for 2021.  Last year(2019) tax at line 24 was around $5000, because it deducted $4000 child credit from tax, which was same 9k.  So I was expecting this year also, it should deduct $3300 from my tax so It will show that in final refund in 35a.

Is this how it will be calculated this year, just curious to know ?