What about mathematical errors in Bible?

It is mentioned in Book of Ezra Ch.2: V.1 and Book of Nehemiah Ch.7:V.6, the context being that when the people returned from exile (from Babylon after released from the captivity), a list of the people is given in Ezra Ch.2:V.2-63 and in Nehemiah Ch.7:V7-65, the list of names and the number of people released is... show more It is mentioned in Book of Ezra Ch.2: V.1 and Book of Nehemiah Ch.7:V.6, the context being that when the people returned from exile (from Babylon after released from the captivity), a list of the people is given in Ezra Ch.2:V.2-63 and in Nehemiah Ch.7:V7-65, the list of names and the number of people released is given. In these 60 verses, there are no less than eighteen times the numbers given different. The names are the same but the number of the people released is different. No less than 18 Contradictions in 60 verses of these two chapters. Further it is mentioned in Book of Ezra, Ch.2:V.64, that the total congregation (if we add up) it comes to 42’360. In Nehemiah Ch.7:V.66, it adds up to the same, 42’360. BUT, if you add up all these verses, in Ezra, it does not come to 42’360, but it comes to 29’818. And if you add up Nehemiah, it does not come to 42’360, it comes up to 31’089. So does that mean that the author of the Bible, presumably the God does not know simple addition.
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