In this Unit, we used the phrase "take away" to describe subtraction. Write at least five sentences in your own words that describe the operation of subtraction and why the phrase "take away" makes it easy to understand subtraction. Explain how single-digit subtraction is different from multiple-digit subtraction. Give an example of a situation in which you would use subtraction to solve a problem in your job or in your home. How can you tell when subtraction is needed in a word problem or real-life situation? How is solving a word problem similar to specific tasks you do at school, at home, or at a job? What types of addition problems might be necessary in the next job you expect to have?