Math - How To videos
Click on the link below to learn "how to" a math topic

Go Math! Student Book
      3rd Grade Review 
             Multi-Digit Addition 
        Multi-Digit Subtraction #1
        Multi-Digit Subtraction #2
        Writing Numbers in Word Form
        Place Value and Writing Numbers
        Rounding Whole Numbers to the Nearest 10
        Rounding Whole Numbers to the Nearest 100
        Rounding Whole Numbers to the Nearest 1,000
        Basic Multiplication - Khan Academy
        Basic Division - Khan Academy

Unit 1: Multiplication and Division
Multi-Digit Multiplication #1 (2 or more digits X 1 digit)
Multi-Digit Multiplication #2 (2 or more digits X 2 digits)
Multi-Digit Multiplication #3 - Regrouping
Multi-Digit Multiplication #4 - Partial Products
Basic Division #1- Khan Academy
Basic Division #2 - Khan Academy
Basic Division with Remainders - MathAntics
Long Division - MathAntics
Long Division - Khan Academy 
Long Division with Remainders - Khan Academy 
Long Division #1
Review of Multiplication and Division Word Problems
Introduction to Multiples
Finding Multiples
Finding Common Multiples

Relating Multiplication and Division

Unit 2: Open Sentences
Unknowns with Multiplication and Division
Open Sentences - Finding the Missing Factor
Variable Expressions - Writing, Solving
Variable Equations 
Writing Variable Equations to Represent Word Problems

Factoring - Math Antics
Determining Factors of Numbers - Khan Academy

Listing Factors of Numbers #1
Listing Factors of Number #2
Prime and Compostie Numbers - Khan Academy

Unit 3: Fractions
How to Find Equivalent Fractions
How to Simplify Fractions, Simplest From
Simplify Fractions - Math Antics
How to Find Common Denominators
Adding and Subtracting Fractions - Math Antics 
How to Compare Fractions
Comparing Fractions - Math Antics
Ordering Fractions - Khan Academy
Ordering Fractions
Multiplying Fractions
Dividing Fractions
Mixed Numbers
Converting Mixed Numbers to Improper Fractions - Khan Academy
Converting Improper Fractions to Mixed Numbers - Khan Academy
Fractions on a Number Line - KhanAcademy
Plotting Fractions on a Number Line - KhanAcademy
Fractions on a Number Line Song

Unit 4: Decimals

Introduction to Decimals - Khan Academy
Decimals Place Value - Khan Academy 
Reading, Writing, and Rounding Decimals
Comparing Decimals Song
Ordering Decimals Song
Rounding Decimals to the Nearest Tenth - KhanAcademy
Rounding Decmials to the Nearest Hundredth
Rounding Decimals Song
Rewriting Fractions as Decimals #1- Khan Academy
Rewriting Fractions as Decimals #2 - Khan Academy
Fractions and Decimals - MathAntics
Converting Base 10 Fractions to Decimals - MathAntics
Adding, Subtracting, Multiplying, Dividing Decimals - MathAntics
Working With Decimals - Review

Unit 5: Inputs/Outputs
Input and Output Song
Input/Output Tables

Determining Number Patterns - Khan Academy
Math Patterns Example - Khan Academy

Unit 6: Geometry
Lines, Line Segments, and Rays - Khan Academy
Classifying Quadrilaterals
Math Antics - Quadrilaterals
Problem Solving Shape Patterns 

Measuring Angles

Unit 7: Area/Perimeter
Area of Combined Rectangles

Below are links to various resources to help your student practice 4th Grade math skills. 

Xtra Math
Khan Academy
Dice Roller

Mr. Anker Tests
Common Core Math Sheets
Cool Math Games
Figure This

Number Munchers
Go Math! Vocabulary Flash Cards (StudyStack)
Go Math! Vocabulary Flash Cards (Quizlet)