# Ch 31: 5th Grade Math: Number Theory

The short and informative video lessons in the Number Theory chapter were created to teach your 5th grade students about topics such as integers, prime numbers, the greatest common factor and composite numbers. The chapter includes a final examination.

## 5th Grade Math: Number Theory - Chapter Summary

With the help of the video lessons in the Number Theory chapter, your 5th grade students could increase their knowledge of scientific notation, the least common multiple and prime factorization. Use the multiple-choice quizzes to gauge your students' grasp of number theory concepts.

## Chapter Lessons and Objectives

Lesson Objective
Converting Numbers to Scientific Notation Students learn the rules for converting any number to scientific notation.
Comparing Numbers Written in Scientific Notation Instructors teach the rules for comparing numbers that are written in scientific notation.
Identifying Prime & Composite Numbers This lesson teaches students to define and identify composite and prime numbers.
How to Find the Prime Factorization of a Number Students learn about the factors of numbers as well as how to find the prime factorization of numbers.
How to Find the Prime Factorization with Exponents Throughout this lesson, instructors teach students to order factors from the least to the largest.
How to Find the Greatest Common Factor This lesson teaches students about the greatest common factor.
How to Find the Least Common Multiple Students are taught how to find the least common multiple.
Using Prime Factorizations to Find the Least Common Multiples The rules for finding the least common multiple are provided in this lesson.
Word Problems with Greatest Common Factor and Least Common Multiple Students learn to solve word problems with the least common multiple and the greatest common factor.

5 Lessons in Chapter 31: 5th Grade Math: Number Theory
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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