This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers to 1,000).

This short video and interactive assessment activity is designed to teach third graders an overview of subtraction (numbers to 1,000).

This short video and interactive assessment activity is designed to give fourth graders an overview of subtraction (numbers to 1,000).

In this assessment students will play a game with a partner. The game is similar to Go Fish and the object is to make ten with two number cards. Students will be prompted to use their ten frame to help them solve the problem. The cards will need to be prepared, however the directions for playing the game, a rubric, and an assessment checklist are provided.

Students solve addition and subtraction word problems, and add and subtract within 10, e.g. by using objects or drawings to represent the problem.

Students will use dominoes to learn how to represent a graphical model for adding unlike fractions.

This task helps students understand the meaning of the equal sign and to use it appropriately.

In this assessment task students think about bugs in a jar and decide how many have escaped by drawing a subtraction picture. Students can solve the story problem by using the addition or subtraction operation to find the solution and are to show their work. Students are given the option of using math manipulatives. The task and rubric are provided.

This short video and interactive assessment activity is designed to teach third graders about fact families (numbers to 1,000).

This short video and interactive assessment activity is designed to teach second graders about fact families (numbers to 1,000).

In this lesson, students will use mathematical reasoning and the four operations to solve math riddle problems. They will work with a partner to read and discuss the riddle together to figure out the answer and then place in a class book.

This task allows students to relate addition and subtraction problems to money in a context that introduces the concept of scarcity.

This short video and interactive assessment activity is designed to teach third graders about filling in the missing + or - sign.

This task asks students to solve addition and subtraction equations with different structures so that they are able to see the connections between addition and subtraction more easily.

Students determine the unknown whole number in an addition or subtraction equation relating to three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8+ ? =11, 5 = ? ? 3, 6+6 = ? Game board templates are provided.

This is a fun interactive game that allows students to practice their basic math fact fluency.

For this task, students use a number line to show why two different sums are equal .

G2M4: Addition and Subtraction Within 200 with Word Problems to 100. Contains 31 Lessons.