Lesson 3

Are You Ready?

 

Complete the following questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1. Determine the LCM (lowest common multiple) of each set of numbers.
   
   
   1. 4 and 6 Answer
      
      
   2. 5 and 9 Answer
      
      
   3. 10, 12, and 15 Answer
      
      
2. Add or subtract the following fractions. Simplify where possible.
   
   
   1. Answer
      
      
   2. Answer
      
      
   3. Answer
      
      
3. Add or subtract the following fractions. Simplify where possible.
   
   
   1. Answer
      
      
   2. Answer
      
      
   3. Answer
      
      
4. Evaluate the following expressions. Remember that the order of operations is important, so you may want to work each step out on paper.
   
   
   1. 8 × 16 ÷ 4 Answer
      
      
   2. 500 − 10 × 15 Answer
      
      
   3. Answer

How did the questions go? If you feel comfortable with the concepts covered in the questions, skip forward to Discover. If you experienced difficulties, use the resources in Refresher to review these important concepts before continuing through the lesson.