Norm, this is nothing but parsing your words. What does your church teach about Christianity. In the 2009 edition of 'Gospel Principles' it still refers to Christianity as "False", a corruption of doctrine with predominantly "pagan beliefs". Doesn't leave much room for any 'truth' in the official eyes of mormonism. Particularly when the teaching by the missionaries get around to smith's claim that ALL their creeds are an abomination. A Christian who believes in a Triune God must discard that for mormon polytheism because to the mormon, that is false - whats being 'added to' here. The list can go on and on norm. There is not a single doctrine of mormonism that is compatable with anything in Christianity.
I have found that Mormons have a lot in common with other Christians. We have the Bible in common, a belief in Jesus Christ’s teachings, his divinity, resurrection, second coming, etc.
Yes, we believe that some of the original teachings of Christ got lost or changed over time (as do protestants — hence the reformation), but that much that was true was preserved. We believe that he restoration of the gospel brought back authority and doctrine which was lost and the channel of revelation through prophets and apostles necessary for Christ to lead His Church aright.