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?

Practice counting, addition, and subtraction by making sure all twenty penguins have enough clothes and food.

[Free Registration/Login may be required to access all resource tools.] This resource includes a video that demonstrates how to find a missing operation in a multi-operational addition and subtraction problem. Practice problems follow...

[Free Registration/Login may be required to access all resource tools.] The resource begins with a video that describes and shows the process of adding money by lining them up in columns. The pictures included in the video and the...

[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...

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

This lesson plan has students solving a real world word problem using addition or subtraction.

In this lesson plan students will understand place value using addition and subtraction.

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.

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...

Practice solving word problems by finding how many more (or fewer) objects there are. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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...

Students will learn about managing money and scarcity while practicing addition and subtraction. They will be given a certain amount of money to spend at a fictitious store. Included are discussion questions about how students decided to...

As a whole class, the teacher presents students with 3 numbers on cards, such as 5, 8, and 3. The teacher asks the students to find all the ways the numbers can be put together in addition or subtraction sentences. This lesson includes...

The purpose of this task is for students to relate addition and subtraction problems to money and to situations and goals related to saving money. A problem is given that will contain multiple solutions, this allows students to think...

[Free Registration/Login may be required to access all resource tools.] This is a video and practice problems finding the missing number of a multi-step addition and subtraction problem that has parentheses. The video models the process...

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...

Second graders often become confused as they count from one decade to the next. In order to become fluent with operations in addition and subtraction, 2nd graders need to be able to move across decades. This lesson includes a detailed...

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

Don't get "hung up" when you play this old game with a new twist. Simply, round each numbers to the nearest thousand then, find the sum or difference. Knowledge of place value units, where to put the comma, and good computation skills...

[Free Registration/Login may be required to access all resource tools.] Students practice with addition and subtraction of whole numbers.

An activity for students to solve word problems.

Practice adding and subtracting numbers like 554 and 237 using a number line. All numbers are less than 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.