Find videos and information that will teach you about adding and subtracting decimals with variables.  Take notes.  Use as many sites as you need to feel confident before moving on to Task 2.  If a video or website stops being helpful, you do not have to watch or read the entire thing, just use what is relevant and helpful to you.

Adding Decimals – 2-Digit Missing Addend Worksheet #1 (10512) (Answer Key)

Adding Decimals – 2-Digit Missing Addend Worksheet #2 (10513) (Answer Key)

Quiz #1051 (when you finish your quiz please show your teacher your score)