The key characteristics of expository prose are style, organization, and appropriate vocabulary. This type of prose should be precise and clear and should not contain any qualifiers such as words like: pretty, very, and little.
When writing expository prose, focus more on using adverbs, adjectives, and verbs to make your writing precise and unique.
In expanded form, 3,492 is written as 3,000 + 400 + 90 + 2. We can take each number and the place it's in to find this. For example, a problem like 34 in expanded form is simply 30 + 4! I hope this helps you in the future. :)
True because it does need to be organized and for fast possible retrieval
I think the way to correct this preposition would be to remove the word "among" and swap it out for the word "between".
Also, it is true that a computers spelling tool finds every mistake in a document, like incorrectly spelled words and fragments and run-on sentences.
Hope this helps :)