Leviticus 27:6

And if the person is from one month to five years old, then the value for a male will be five shekels of silver, and for a female three shekels.

Numbers 3:40-43

And the Lord said to Moses, Let all the first male children be numbered, and take the number of their names.

Numbers 18:14-16

Everything given by oath to the Lord in Israel is to be yours.

Treasury of Scripture Knowledge

Summary

And if it be from a month old even unto five years old, then thy estimation shall be of the male five shekels of silver, and for the female thy estimation shall be three shekels of silver.

Bible References

From

Numbers 3:40
And the Lord said to Moses, Let all the first male children be numbered, and take the number of their names.
Numbers 18:14
Everything given by oath to the Lord in Israel is to be yours.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain