Unit 3: Everyday Math
In this unit you will investigate the four basic operations—addition, subtraction, multiplication, and division—including the math language associated with them. You will also get the chance to find out about different strategies to help you deal with mental math problems.
To check your understanding of these operations before you start, give the Unit 3 pre quiz a try, then use the feedback to help you plan your study.
The quiz checks most of the topics in the unit, and should give you a good idea of the areas you may need to spend most time on. Remember, it doesn’t matter if you get some or even all of the questions wrong—it just indicates how much time you may need for this unit!
So far, we’ve studied how to write, estimate, and round numbers. Now we will begin to perform calculations with them. First, let’s look at addition and subtraction of numbers.
3.0.1 What to Expect in this Unit