Students will roll a die and follow the directions to explore adding and subtracting on a number line.

In the lesson plan on adding and subtracting within 10, students will use ten frames to add and subtract. They will also review key vocabulary terms, like sum, difference, and equal sign.

This site provides students practice with the concept of adding and subtracting fractions. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

This site provides students practice with the concept of adding and subtracting decimals. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...

This site provides students practice with the concept of algebraic fractions. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

Practice subtracting 1 or 10 from a 2-digit number (no regrouping). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

A guide to support parents as they work with their students in number pairs, addition and subtraction to 10.

A guide to support parents as they work with their students in sums and differences to 20.

This site provides students practice with the concept of simplifying expressions. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

This site provides students practice with the concept of simplifying expressions. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

Try to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given. A suitable tool for use as a quick assessment.

Learners are challenged to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given.

When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.

Students explore the concept of number partners by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.

The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...

Using base-ten materials and place-value skills, 2nd graders gain a better understanding of how to add and subtract numbers.

Practice subtracting 1, 10, or 100 from a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice making groups of 10 and 100 while adding 3-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding numbers to make 5. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding by "putting together" (with numbers less than 10). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The purpose of this task is for students to add, subtract, multiply, and divide decimal numbers in a real-world context. The weekly income earned by each person in the task is the median weekly income for their education level, but they...