Sara used a number line to add. She started counting at 10, and then she counted until she was over the number –4 on the number line. If Sara is modeling addition, what number did she have to add to 10? Explain and show your reasoning.

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?