# Ch 1: 4th Grade Math: Number Sense & Arithmetic

### About This Chapter

## Number Sense and Arithmetic - Chapter Summary

The video lessons in this chapter can be used to reinforce and clarify the basic number and arithmetic concepts your 4th grader has been learning in class. Easy-to-follow and engaging videos teach students how to recognize whole numbers, even numbers, odd numbers, prime numbers, and more. Included are short, multiple-choice quizzes for each lesson, as well as a chapter exam, which can help you check your 4th grader's understanding and retention of the chapter's number concepts.

## Chapter Lessons and Objectives

Lesson | Objective |
---|---|

How to Put Numbers in Order | Students learn how to properly order numbers up to 100,000. |

Finding Place Values in Whole Numbers | With this lesson, students learn how to find the place value of a digit within a whole number. |

Using Word Names for Numbers | Students practice how to write out word names for numbers. |

Recognizing & Representing Whole Numbers | In this lesson, students learn how to recognize different forms of whole numbers, such as standard, expanded and word forms. |

Roman Numerals 1-20 | Students learn basic Roman numerals. |

How to Compare Numbers with Math Symbols | This lesson introduces the 'greater than' (>), 'less than' (<), and 'equal to' (=) symbols. |

How to Skip Count | The instructor introduces students to the concept of skip counting. |

How to Identify Even & Odd Numbers | Students gain practice in identifying even and odd numbers. |

Arithmetic with Whole Numbers | Students practice performing basic arithmetic with whole numbers. |

Identifying Prime & Composite Numbers | This lesson defines and explains prime and composite numbers. |

What is an Inequality? | Students learn the basics of inequalities. |

### 1. How to Put Numbers in Order

After watching this video lesson, you will know how to order numbers from smallest to largest and from largest to smallest. You will also know how to compare numbers to figure out which goes first and which goes last.

### 2. Finding Place Values in Whole Numbers

After watching this video lesson, you will be able to find the location of any place value that you are given. You will also be able to identify them in any whole number.

### 3. Using Word Names for Numbers

Watch this video lesson to learn how the worlds of math and English mix together. Learn how to go from English to math and then back to English again. Learn how every single math number has an equivalent English word for it.

### 4. Recognizing & Representing Whole Numbers

Watch this video lesson to learn how you can recognize the three different forms we have for writing our whole numbers. Also learn how you can represent any whole number using any one of these three forms.

### 5. Roman Numerals 1-20

After watching this video lesson, you will be able to identify and write the numbers 1-20 using Roman numerals. You will learn how a Roman numeral is different from the numbers we are familiar with, and you will learn the rules of Roman numerals.

### 6. How to Compare Numbers with Math Symbols

After viewing this lesson, you should know how to compare numbers. You will learn the different names for the math symbols that are used to compare numbers, as well as what they look like.

### 7. How to Skip Count

In this lesson, you will learn how you can skip count. Find out how to count by twos and by threes, and see how you can skip count by any given number.

### 8. How to Identify Even & Odd Numbers

In this short lesson, you will learn a bit more about numbers. You will learn what makes a number even, what makes a number odd, and how to identify each.

### 9. Arithmetic with Whole Numbers

There are four basic mathematical operations: addition, subtraction, multiplication, and division. These four operations are used in a wide range of everyday skills and are the fundamental blocks of arithmetic.

### 10. Identifying Prime & Composite Numbers

In this video lesson, you will learn how to identify both prime and composite numbers. You will also learn what makes the numbers unique, as well as the characteristics of both these types of numbers.

### 11. What is an Inequality?

Deciding how to spend your money can be a tricky thing. Should you save it, invest it, or enjoy it? Learn how inequalities can help you make your decision!

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### Other Chapters

Other chapters within the 4th Grade Math: Practice & Review course

- 4th Grade Math: Number Properties
- 4th Grade Math: Solving Math Word Problems
- 4th Grade Math: Estimation & Rounding
- 4th Grade Math: Addition
- 4th Grade Math: Subtraction
- 4th Grade Math: Multiplication
- 4th Grade Math: Multiples of Whole Numbers
- 4th Grade Math: Division
- 4th Grade Math: Simplifying Whole Number Expressions
- 4th Grade Math: Basic Algebraic Expressions
- 4th Grade Math: Data & Graphs
- 4th Grade Math: Probability & Statistics
- 4th Grade Math: Units of Measurement
- 4th Grade Math: Introduction to Geometric Figures
- 4th Grade Math: Angles
- 4th Grade Math: Triangles
- 4th Grade Math: Quadrilaterals
- 4th Grade Math: Circles
- 4th Grade Math: Polyhedrons & Geometric Solids
- 4th Grade Math: Perimeter, Area & Volume
- 4th Grade Math: Symmetry, Similarity & Congruence
- 4th Grade Math: Fractions
- 4th Grade Math: Operations with Fractions
- 4th Grade Math: Decimals
- 4th Grade Math: Operations with Decimals
- 4th Grade Math: Money
- 4th Grade Math: Time
- 4th Grade Math: The Coordinate Graph
- 4th Grade Math: Patterns & Sequences