About This Chapter
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
|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.|
1. Converting Numbers to Scientific Notation
After watching this video lesson, you will be able to convert any number you come across into scientific notation. You will also learn why scientific notation is used and where you are most likely to see it.
2. How to Find the Prime Factorization of a Number
The prime factorization of a number involves breaking that number down to its smallest parts. This lesson will show you two different ways to discover the prime factorization of any number.
3. How to Find the Greatest Common Factor
If the factors of a number are the different numbers that you can multiply together to get that original number, then the greatest common factor of two numbers is just the biggest one that both have in common. See some examples of what I'm talking about here!
4. How to Find the Least Common Multiple
The least common multiple of two numbers is the smallest number that can be divided evenly by your two original numbers. See some examples of what I'm talking about here!
5. Using Prime Factorizations to Find the Least Common Multiples
Finding the least common multiple can seem like a lot of work. But we can use prime factorization as a shortcut. Find out how and practice finding least common multiples in this lesson.
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Other chapters within the 5th Grade Math: Practice & Review course
- 5th Grade Math: Number Sense & Arithmetic
- 5th Grade Math: Number Properties
- 5th Grade Math: Solving Math Word Problems
- 5th Grade Math: Estimation & Rounding
- 5th Grade Math: Addition
- 5th Grade Math: Subtraction
- 5th Grade Math: Multiplication
- 5th Grade Math: Multiples of Whole Numbers
- 5th Grade Math: Division
- 5th Grade Math: Simplifying Whole Number Expressions
- 5th Grade Math: Basic Algebraic Expressions
- 5th Grade Math: Data & Graphs
- 5th Grade Math: Probability & Statistics
- 5th Grade Math: Units of Measurement
- 5th Grade Math: Introduction to Geometric Figures
- 5th Grade Math: Angles
- 5th Grade Math: Triangles
- 5th Grade Math: Quadrilaterals
- 5th Grade Math: Circles
- 5th Grade Math: Perimeter, Area & Volume
- 5th Grade Math: Symmetry, Similarity & Congruence
- 5th Grade Math: Fractions
- 5th Grade Math: Operations with Fractions
- 5th Grade Math: Decimals
- 5th Grade Math: Operations with Decimals
- 5th Grade Math: Mixed Operations
- 5th Grade Math: Money
- 5th Grade Math: Time
- 5th Grade Math: The Coordinate Graph
- 5th Grade Math: Patterns & Sequences
- 5th Grade Math: Integers
- 5th Grade Math: Percents
- 5th Grade Math: Rates, Ratios & Proportions