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

This video explains how to represent a fraction as a decimal and as a percent. Practice problems are available. [5:25]

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 divide a decimal by a power of ten. Practice problems are available. [3:18]

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

Learn how to write a five-digit whole number in expanded form by watching a video. Practice problems are available. [5:20]

This video shows how to write a number in the hundred millions in standard form from a description. Practice problems are available. [4:09]

This video shows how to order fractions, decimals, and percents. Practice problems are available. [9:22]