Mormons get all the basic tenets of Christianity wrong.
Mormons believe that God is just an exalted man, and that we can become
gods ourselves, populating our own planet in the same way that God did
with this planet.
Women are to be pregnant for eternity populating their planet and can
only be saved after death if they are called from the grave by their
husband.
Because they think that God the Father has a physical body, they believe
the Trinity is a pagan idea. Also, Mormons deny the virgin birth - they
believe God the Father had physical sex with Mary.
The believe that the biblical idea of Hell is only for apostate (fallen
away) Mormons. They believe the Book of Mormon has its own familiar
spirit. (See Leviticus 19:31 and 20:9 & 27, Deuteronomy 18:9-12,
Isaiah 29:4, Galations 6:19-21 and others.)
Mormons have four holy books:
1. The Bible, but Mormons believe it only as far as they think it has
been translated correctly.
2. Book of Mormon. Claimed to be another testament of Jesus Christ,
it supposedly "... contains, as does the Bible, the fullness of
the everlasting gospel."
The Book of Mormon has undergone over 4000 word and doctrine changes
since the 1830 edition. Absolutely no archeological evidence for the
Book of Mormon has been discovered (except for the part that was copied
straight from the King James Bible).
3. Doctrines and Covenants. "Compilation of alleged divine revelations
given to the Mormon church."
There have been over 2800 additions, deletions, and word changes
since 1833. It also teaches polygamy.
4. Pearl of Great Price.
There have been over 1600 word changes since 1851. Includes racism.
Mormons also believe "In addition to these four books of scripture,
the inspired words of our living prophets become scripture to us."