Practice adding two-digit numbers by making tens on Khan Academy. If you are stuck, watch a refresher video or choose to get a hint. Test yourself to see how many you can get correct!

Practice adding and subtracting mixed numbers with different denominators. No regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Students will be challenged in their skills to add 2-digit numbers by making tens

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.

Practice solving addition and subtraction problems with integers (positive and negative numbers). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This video tutorial reviews how to add mixed numbers with like and unlike denominators. The lesson includes detailed examples.

Students watch a video lesson about adding mixed numbers. The tutorial includes detailed examples that demonstrate two methods for solving.

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.

Practice adding and subtracting mixed numbers.

[Free Registration/Login may be required to access all resource tools.] A collection of resources that explain complex numbers and how to do arithmetic with them.

Practice adding positive and negative single-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this activity, students learn to build and add two digit numbers. They connect number words and numerals.

Practice identifying equivalent expressions involving the addition and subtraction of negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students add mixed numbers that have the same denominators. Includes video demonstrating a sample problem [1:36] and a set of practice...

Practice adding and subtracting rational numbers of different forms.

The purpose of this task is to help young scholars realize there are different ways to add mixed numbers and is most appropriate for use in an instructional setting. The two primary ways one can expect students to add are converting the...

A fast paced game where students add and subtract positive and negative integers quickly so they can smash a pinata. Three levels of play, and instructional help is available as they progress.

Add and subtract positive and negative numbers.

Practice adding two-digit numbers by making groups of ten.

Practice adding 2-digit numbers like 43+27 that have sums that are multiples of 10.

Practice addition and subtraction with complex numbers.

Practice adding numbers like 554 and 237 using a number line. All numbers are less than 1000.

This StudyCards stack enables students to review basic addition of positive and negative integer numbers. They are tested on their ability to add positive numbers, negative numbers and numbers in parenthesis.

[Free Registration/Login may be required to access all resource tools.] Learn how to add rational numbers.