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.

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.

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

[Free Registration/Login may be required to access all resource tools.] A video models finding a missing operation (addition or subtraction) by using order of operations with parentheses and working backwards. The practice problems...

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.

Red apples, orange candles, yellow stars, green frogs, and blue, indigo, and violet flowers-they all add up to Rainbow Math fun! During this adventure children learn the colors of the rainbow as they practice counting, adding and...

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

A detailed explanation of polynomials and like terms is followed with many examples of how to add and subtract them. Lessons for the teacher as well as interactive examples for the students provide plenty of opportunities for practice....

Students determine which addition and subtraction equations are true and false and place them under the correct place.

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

Use multiplication, division, addition, or subtraction to play this math basketball game. Choose your operation and level to try to collect basketballs to use for shooting free throws. Each correct answer earns you one basketball - the...

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