Number problems

[Athetotheist]

The children of Bigvai, two thousand fifty and six. 
(Ezra 2:14)
The children of Bigvai, two thousand threescore and seven. 
(Nehemiah 7:19)

The children of Adin, four hundred fifty and four. 
(Ezra 2:15)
The children of Adin, six hundred fifty and five. 
(Nehemiah 7:20)

The children of Azgad, one thousand two hundred twenty and two. 
(Ezra 2:12)
The children of Azgad, two thousand three hundred twenty and two. 
(Nehemiah 7:17)

The children of Bani, six hundred forty and two. 
(Ezra 2:10)
The children of Binnui, six hundred forty and eight. 
(Nehemiah 7:15)

The children of Senaah, three thousand and six hundred and thirty. 
(Ezra 2:35)
The children of Senaah, three thousand nine hundred and thirty. 
(Nehemiah 7:38)

The singers: the children of Asaph, an hundred twenty and eight. 
(Ezra 2:41)
The singers: the children of Asaph, a hundred forty and eight. 
(Nehemiah 7:44)

Why so many number problems?

[Athetotheist]

[Replying to marke in post #9]

Errors in numbering are likely translation or transcription issues.

The numbers given in the Masoretic copies [Hebrew to Hebrew] match up exactly with those given in the Septuagint translation [Hebrew to Greek]. So if the mismatches are translational errors, how did the Masoretic copyists and the Septuagint translators happen to make all the same errors?

[marke]

[Replying to marke in post #9]

Errors in numbering are likely translation or transcription issues.

The numbers given in the Masoretic copies [Hebrew to Hebrew] match up exactly with those given in the Septuagint translation [Hebrew to Greek]. So if the mismatches are translational errors, how did the Masoretic copyists and the Septuagint translators happen to make all the same errors?

Marke: I don't know.

[Athetotheist]

[Replying to marke in post #9]

Errors in numbering are likely translation or transcription issues.

The numbers given in the Masoretic copies [Hebrew to Hebrew] match up exactly with those given in the Septuagint translation [Hebrew to Greek]. So if the mismatches are translational errors, how did the Masoretic copyists and the Septuagint translators happen to make all the same errors?

Marke: I don't know.

Might it be because the errors were in the originals?