Have you learned the basics of rational expression addition/subtraction? Great! Now dig deeper with some advanced examples.

Use estimation to solve multi-step word problems involving addition, subtraction, multiplication, and division.

Use estimation to solve two-step word problems involving addition, subtraction, multiplication, and division.

Students can practice addition and subtraction of 100 on a number line with this activity.

This is an online tool where the teacher and students can use interactive beads on a rekenrek to model addition or subtraction.

In this math learning game, students choose numbers up to 10 or up to 20 and addition or subtraction. They guide an astronaut to the planet with the correct answer for each problem.

The famous Clockenheimer Cuckoo is missing from Clockenheimer Clocks on Main Street! Help Math Maven get it back by solving a math riddle.

Browse resources related to first-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.

Browse resources related to second-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.

Practice adding and subtracting to solve word problems. These questions are result unknown or change unknown problems. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try questions...

Explore the relationship between addition and subtraction with this lesson. Help students understand that "every subtraction fact has a related addition number sentence, and every addition fact has a related subtraction number...

Find a quick, concise explanation of how to add and subtract with negatives. Step by step examples are included to help you understand how to find the sum or difference when negative numbers are involved.

Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Find the matrix that is the result of the addition or subtraction of two given matrices. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Multiplayer math game where four wheelers race by solving algebra one-step addition and subtraction problems.

The purpose of this task is to foster a classroom discussion that will highlight the difference between multiplicative and additive reasoning. Aligns with CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison

Solve conceptually challenging absolute value problems. In order to succeed at these problems, you'll need to remember that the absolute value of the difference of two numbers is the distance between those numbers. Students receive...

Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators.

A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.

[Free Registration/Login may be required to access all resource tools.] A video tutorial using order of operations with both addition and subtraction to solve problems with emphasis on working from left to right. Practice questions...

[Free Registration/Login may be required to access all resource tools.] The resource is a video showing students how to find a missing number in a multi-step addition and subtraction problem using inverse operations. Adaptive practice...

[Free Registration/Login may be required to access all resource tools.] This resource begins with a video demonstrating using addition and subtraction in a word problem to determine the longest length of the objects being compared in the...

[Free Registration/Login may be required to access all resource tools.] This resource is a video that demonstrates using two different steps with addition or subtraction to solve a word problem. Practice word problems follow using two...

Students will solve addition and subtraction equations with different structures so that they are able to see the connections between addition and subtraction more easily.