# Ch 2: ELM Test - Numbers and Data: Rational Numbers

This chapter can help you review basic numbers and data concepts for the ELM (Entry-Level Mathematics Test). The video lessons with quizzes cover the many applications of fractions to help you get ready for the exam.

## ELM Numbers and Data: Rational Numbers - Chapter Summary

Prepare for the ELM math exam with our help. Interactive quizzes follow the short video lessons so you can get immediate feedback on your progress. This chapter's lessons include the following concepts:

• Building and reducing fractions
• Least common denominators
• Ordering and comparing fractions
• Mixed numbers and improper fractions
• Adding, subtracting, multiplying and dividing fractions and mixed numbers
• Estimating with fractions
• Complex fractions
• Ratios and proportions

These lessons explain strategies for comparing and ordering fractions in addition to giving you ample practice solving problems with fractions. After you take the quizzes, you can revisit any lessons that might need more attention.

### ELM Numbers and Data Objectives

The ELM math proficiency exam is required if you plan to attend a school in the California State University system. Your school will use the results to determine which math classes are appropriate for you.

The lessons in this chapter about rational numbers are part of the larger section of Numbers and Data on the ELM. The Numbers and Data portion of the exam constitutes about 35% of the 50-question test. You can expect your exam to test the following objectives:

• Solve problems using fractions, percents and decimals in context
• Order and compare rational numbers expressed as fraction or decimals
• Interpret and use proportion and ratio
• Use estimation
• Understand data presented in tables, charts and graphs
• Interpret and calculate mean and median

The videos and quizzes in this chapter and the others related to Numbers and Data can help you prepare for test day.

15 Lessons in Chapter 2: ELM Test - Numbers and Data: Rational Numbers
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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