Khan Academy Videos - Arithmetic

-- Arithmetic Operations

Below are video lessons and practice problems provided by Khanacademy.org.   

Adding and Subtracting Decimals

• Adding Decimals 1
• Adding Decimals 2
• Adding Decimals 3
• Practice – Adding Decimals
• Subtracting Decimals  
• Subtracting Decimals Up To Thousandths Place
• Practice – Subtracting Decimals
• Adding Decimals Word Problems
• Subtracting Decimals Word Problems
• Practice – Adding and Subtracting Decimals Word Problems

Multiplying Decimals

• More Involved Multiplying Decimals
• Multiplying Decimals
• Cost of Filling Tank
• Practice – Multiplying Decimals

Dividing Whole Numbers and Decimals

• Dividing by a Two Digit Number
• Division by 2 Digits
• Practice - Multi-Digit Division
• Dividing Completely to Get Decimal Answer
• Practice – Dividing Completely
• Dividing Decimals
• Practice – Dividing Decimals

Dividing Whole Numbers and Fractions

• Putting Out Bowls of Potpurri
• Spending the Weekend Studying
• How Many T-Shirts Can I Make?
• Practice – Dividing Fractions by Whole Numbers
• Practice – Dividing Whole Numbers by Fractions
• Practice – Dividing with Fractions and Whole Numbers Word Problems

Dividing Fractions by Fractions

• Conceptual Understanding of Dividing Fractions by Fractions
• Practice – Dividing Fractions by Fractions
• Dividing Fractions 1
• Dividing Fractions 2
• Practice – Dividing Positive Fractions
• Practice – Dividing Fractions by Fractions and Whole Numbers Applications

Dividing Decimals

• Dividing Decimals with Hundredths
• Dividing Decimals 1
• Dividing Decimals 2
• Practice – Dividing Decimals

Exponents

• Introduction to Exponents
• Practice – Positive and Zero Exponents
• Powers of Fractions 

Order of Operations 

• Introduction to order of operations
• Order of operations examples: exponents
  
  • Practice - Order of operations
• Order of operations example 
• Order of operations: PEMDAS
• Order of operations example: putting it all together 
  
  • Practice - Order of operations 2