Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to use addition and subtraction to solve simple word problems about metric capacity. Includes video demonstrating a...

[Free Registration/Login may be required to access all resource tools.] Looks at finding the direction and magnitude of vectors and breaking vectors into component parts.

Math Man Jr. is an elementary activity to practice addition and subtraction math facts. Solve math problems and avoid the ghosts! Fun for children of all ages!

An activity for students to solve simple word problems using addition and subtraction.

Students are to solve multi-step problems involving addition and subtraction.

Learn how to solve problems like "___ - 7 = 18" where you don't know one of the values in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Exercises for practicing adding and subtracting polynomials. 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.] For this learning module, students are asked to solve word problems about length and distance that involve any of the four operations. Includes video demonstrating a...

[Free Registration/Login may be required to access all resource tools.] Practice problems involving addition or subtraction of 3 measurements to solve for a specific length.

Practice solving equations in one step by adding or subtracting the same value from both sides. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

On this interactive website students practice various math skills using a real life scenario doing Halloween shopping. Those skills include solving money problems with addition and subtraction and understanding the value of money and coins.

[Free Registration/Login may be required to access all resource tools.] Locate the video "Calculating Sums: Less Than, Greater Than, or Equal to." In this learning module, students apply their addition and subtraction skills in comparing...

Practice addition and subtraction with complex numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The resource consists of 378,028 math puzzles available in three different levels. Students use multiplication, division, addition, and subtraction skills to solve the puzzles. The puzzles can be solved online or downloaded as a PDF file.

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.

Base Ten Fun is an educational virtual manipulatives activity for kids learning place value, addition and subtraction. Base Ten Fun is highly customizable; kids can select from ones, tens and hundreds.

Download these free worksheets to sharpen your word problem skills. Sheets focus on addition, multiplication, subtraction, division, and other math topics.

[Free Registration/Login may be required to access all resource tools.] The video shows how to answer a series of addition or subtraction problems with numbers up to 1,000. The video is followed by practice problems.

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.

In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Choose the step where an error was made in adding or subtracting polynomials. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

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.