Practice adding and subtracting mixed numbers with common (like) denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Students will love playing this "Who Wants to be a Millionaire," style game as they work through the subtraction problems. Some of the numbers are large, but there is no regrouping necessary.

Multiply 2-digit numbers by 2-digit numbers. Regrouping (carrying) needed. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding and subtracting mixed numbers with different denominators. Regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...

In this Cyberchase video segment, Matt uses subtraction to help Digit figure out how much time he has left in a cooking contest with Hacker.

In this exercise, students practice multiplication with carrying. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

You can earn a million bucks playing this addition game. A succinct multiple choice game with hints, if you need them. Contains simple computation problems mixed with a few word problems. Must be able to add up to the millions place (one...

In this interactive website put twenty multiplication problems in order according to the increasing value of their products.

Go from rags to riches as you advance through the levels in this "Who Wants to Be a Millionaire?," type multiplication game.

This website for young children gives them practice adding sums to 10. Problems are presented as teddy bears to add up with the corresponding digits that represent the problem symbolically.

Subtract with 2 numbers less than 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Subtract whole numbers that are less than or equal to 1,000,000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice problems to challenge your understanding of whole number place value Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.