Arithmetic Refresher For College

Need help brushing up on Arithmetic to prepare for college or tests? Here is a collection of Arithmetic review lessons in videos prepared by various colleges/contributors.

Arithmetic review videos by Portland Community College

• 1.1 Introduction

• Whole Numbers:Place Value & Word Names
  Expanded Form
  Rounding and Inequalities
  Addition of Whole Numbers
  Subtraction of Whole Numbers

• Multiplication of
  Whole Numbers
  Division of Whole Numbers
  Exponents and Powers of Ten
  Order of Operations: Problems with Two or More Operations

• 1.2 Factors and Fractions

• Average
  Multiples
  Divisors and Factors
  Divisibility Tests
  

• Primes and Composites
  Prime Factorization
  Least Common Multiple
  Fractions and Mixed Numbers
  

• Converting Improper Fractions to Mixed Numbers
  and vice versa
  Reducing Fractions
  Multiplication of Fractions

• Division of Fractions
  Multiplication and Division of Mixed Numbers
  Listing Fractions in Order of Value

• Addition of Like Fractions
  Addition of Unlike Fractions
  Addition of Mixed Numbers
  
  

• Subtraction of Fractions
  Subtraction of Mixed Numbers
  Order of Operations &
  Average
  

• 1.3 Decimals

• Decimal Numbers: Place Value & Word Names
  Expanded Form, Decimals to Fractions
  Ordering Decimals by Value
  

• Approximation of Decimals
  Addition of Decimals
  Subtraction of Decimals
  Multiplication of Decimals
  
  

• Multiplication & Division by Powers of Ten
  Division of Decimals
  Fractions to Decimals
  Decimals with Fractions
  Order of Operations & Average

•  
  Ratio and Proportion
  Solving Proportions
  Word Problems (Proportions)
  
  

• What is Percent?
  Changing Decimals to Percents
  Changing Percents to Decimals
  Fractions to Percents
  Percents to Fractions
  

• Fractions Decimals & Percents Review
  Solving Percent Problems
  Word Problems (Percents)
  Business Related Problems
  
  

• 1.4 Signed Numbers

• Signed Numbers
  Addition of Signed Numbers
  Subtraction of Signed Numbers
  

• Multiplication of Signed Numbers
  Division of Signed Numbers
  Review: Order of Operations

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

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