Explains how to add money. Gives exercises and games to practice this skill.

This page explains and lists the basic multiplication facts for zero, one, two, and three. It also provides practice and games to improve multiplication skills. CCSS.Math.Content.3.OA.C.7 Fluently multiply and divide within 100

This lesson gives practice with the basic multiplication facts for zero to twelve and games to practice this skill. Content is available in labelled sections so you can find just the piece you need.

This lesson explains how to determine the place value of a number for the ones, tens, and hundreds places. Includes practice and games to practice this skill.

This tutorial explains how to determine the place value of a number from ones to the one millions place. Includes practice and games to practice this skill.

Explains how to compare fractions with unlike numerators and denominators, and includes games to practice this skill.

Explains the basic facts for division by 10, 11, and 12. Gives problems and games to practice this skill.

This site gives a brief explanation of how to compare fractions with different denominators. Gives practice and games to play to use this skill.

This personal page explains how to change a percent to a decimal, then offers practice and games to polish this skill.

Test your knowledge with this online quiz on the major geographic regions of Virginia. Quiz includes 16 questions. Users must enable JavaScript.

This lesson describes eighths and gives practices and games identifying various amounts of eighths. Also shows other fractions visually.

This personal site explains how to compare fractions with the same denominator, gives examples, and includes games to practice the new skill. CCSS.Math.Content.3.NF.A.3.d Compare two fractions with the same numerator or the same...

This lesson explains how to find the percent of a whole number. Gives practice and games to practice this skill.

This lesson explains how to determine the percent of one number compared to another. Includes practice and games to practice this skill.

This site explains the traditional way to multiply a two-digit by a one-digit number. Gives practice and games to practice this skill.

Processing JavaScript in Khan Academy versus outside Khan Academy: differences and suggestions are given for the code editing environment.

Unscramble the names of these Latin American countries while the computer keeps track of how well you are doing. Users must enable JavaScript.

Amaze your friends with this number trick! Mystery Math is a number game that allows you to guess another person's secret number. If you want to play Mystery Math with the computer, you will need a pencil, a piece of paper and a...