What lines are wrong? If it's for a refund on 1040 line 35a or a tax due on 37, then check to see if you have a penalty on line 38. That is subtracted from a refund or added to the tax due.
And most places the amounts are rounded so they can add up different than the amounts you typed in.
You can add a screen shot by clicking the camera icon at the top of the message box when you type a question or reply.