Khan Academy: Arithmetic and Pre Algebra: Number as Decimal, Percent, Fraction 2

This video explains how to represent a percent as a decimal and as a fraction. Practice problems are available. [3:32]

This video shows how to locate and plot a decimal number on a number line. Practice problems are available. [1:39]

A video covering a review of subtraction using a number line, followed by subtraction of numbers up to three-digits by using borrowing and regrouping. Practice problems available. [18:26]

This video explains how to find the reciprocal of a mixed number. [1:41]

This video shows several examples of addition with up to four-digit numbers. Practice problems are available. [8:57]

This video shows how to write a mixed number as an improper fraction. Practice problems are available. [4:26]

This video shows how to divide a decimal by a power of ten. Practice problems are available. [3:18]

This video shows how to write a ratio as a fraction in simplest form. Practice problems are available. [1:19]

This video shows how to add two mixed numbers and simplify the result. Practice exercises are available. [2:06]

This video explains how to multiply two fractions and simplify the answer. Practice problems are available. [2:26]