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

Practice adding and subtracting within one hundred with these multiple-choice problems.

Practice adding and subtracting within one hundred with these multiple-choice problems.

Practice solving addition and subtraction problems with integers (positive and negative numbers).

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...

[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...

The number line is a powerful math tool students can use to model their thinking when solving addition and subtraction problems. Use this lesson to help students use the number line to count forwards and backwards from 0 to 30.

An interactive worksheet for practice in the addition and subtraction of decimals with positive and negative signs.

[Free Registration/Login Required] This lesson covers adding, subtracting matrices and equivalent matrices.

[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a series of multi-operation problems with addition and subtraction of three-digit numbers to determine which does not match the...

This Curious George game will demonstrate operating with numbers (addition and subtraction) in various ways, up to a total of 10. George is playing with his train set. Can you help him build trains to be the right length?

[Free Registration/Login may be required to access all resource tools.] The video shows how to use addition and subtraction to keep an equation balanced by working backwards to determine the missing value. The video is followed by...

[Free Registration/Login may be required to access all resource tools.] The video shows how to work through a flow chart of addition and subtraction with numbers up to 1000. The video is followed by practice problems covering the topics...

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

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

Solve addition and subtraction word problems using a number line in this interactive exercise.

[Free Registration/Login may be required to access all resource tools.] The video works through 2-digit addition and subtraction problems to determine which number sentence coincides with the given value. The video is followed by...

This complete lesson plan has students solve word problems using addition and subtraction within 20.

This is a complete lesson that has students solving word problems using addition and subtraction within 20.

This lesson plans allows students to explore the meaning of the equal sign in addition and subtraction problems.

This lesson includes a series of questions that can be posed by the teacher to the whole class which revolves around addition and subtraction.

Students will learn from these notes that will challenge their application of the order of operations. Multiplication, division, addition, and subtraction are featured in these notes.

Use this game resource with children to help them understand the meaning of addition (+) and subtraction (-). George loves the sounds of frogs croaking in the pond. Children can help him control the number of frogs in his chorus with the...

In this lesson plan, 1st graders are given a graphic of a map and are to use addition and subtraction to solve the word problem.