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
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1.1 Introduction
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1.2 Factors and Fractions
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Primes and Composites
Prime Factorization
Least Common Multiple
Fractions and Mixed Numbers
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Addition of Like Fractions
Addition of Unlike Fractions
Addition of Mixed Numbers
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Subtraction of Fractions
Subtraction of Mixed Numbers
Order of Operations &
Average
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1.3 Decimals
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Approximation of Decimals
Addition of Decimals
Subtraction of Decimals
Multiplication of Decimals
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Ratio and Proportion
Solving Proportions
Word Problems (Proportions)
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1.4 Signed Numbers
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Signed Numbers
Addition of Signed Numbers
Subtraction of Signed Numbers
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Multiplication of Signed Numbers
Division of Signed Numbers
Review: Order of Operations
Check out our most popular games!
Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!
Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.
Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.
Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.
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