Numbers 4:36

34 And Moses and Aaron and the chief of the congregation numbered the sons of the Kohathites after their families, and after the house of their fathers,

35 From thirty years old and upward even unto fifty years old, every one that entereth into the service, for the work in the tabernacle of the congregation:

And those that were numbered of them by their families were two thousand seven hundred and fifty.

37 These were they that were numbered of the families of the Kohathites, all that might do service in the tabernacle of the congregation, which Moses and Aaron did number according to the commandment of the LORD by the hand of Moses.

38 And those that were numbered of the sons of Gershon, throughout their families, and by the house of their fathers,

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
And those numbered by their clans totaled 2,750.
KJV
And those that were numbered of them by their families were two thousand seven hundred and fifty.
WEB
Those who were counted of them by their families were two thousand seven hundred fifty.
ASV
and those that were numbered of them by their families were two thousand seven hundred and fifty.
DARBY
And those that were numbered of them according to their families were two thousand seven hundred and fifty.
BLB
And those numbered by their clans were two thousand seven hundred and fifty.
ÅB
Og de av dem som ble mønstret, hver etter sin slekt, var to tusen, syv hundre og femti.
OTB
talt etter deres klaner var 2 750.
B1930
Og de av dem som blev mønstret, hver efter sin ætt, var to tusen, syv hundre og femti.

Study notes (Tyndale)

Original text and word study