# Add within 100 - Regrouping - Lesson for Grade 2, Chapter - Addition and Subtraction within 100

In the lesson "Add within 100 - Regrouping," aimed at Grade 2 students, the primary focus is on mastering the skill of addition with regrouping within the range of 100. This lesson falls under the larger chapter of "Addition and Subtraction within 100," which is part of the unit "Foundations in Operations Within 1000." Through engaging activities such as the "Let's Regroup to Add Worksheet," "Animal Sanctuary Worksheet," and the "Let's Regroup! Worksheet," students will learn how to efficiently add numbers that require regrouping, or carrying, as they work with numbers up to 100.

Understanding how to add with regrouping is a fundamental skill that serves as a building block for more complex mathematical concepts. It enhances students' numerical fluency and prepares them for tackling higher-level operations, including subtraction with borrowing, and eventually, multiplication and division. This skill is critical not only for academic success in mathematics moving forward but also for practical everyday situations where precise addition is required. By mastering addition with regrouping, students will build a solid foundation in arithmetic that supports their future learning in math.

Estimated classroom time: 9 min
Chapter: Addition and Subtraction within 100
Unit: Foundations in Operations Within 1000
Click on any activity below to start learning.
1st
3:00 min
worksheet
2nd
3:00 min
Animal Sanctuary Worksheet
worksheet
3rd
3:00 min
Let's Regroup! Worksheet
worksheet
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• ### Activity 1 / Let's Regroup to Add Worksheet

Being able to regroup and rename numbers is important when doing addition of numbers over ten. This practice worksheet will let students have the opportunity to regroup numbers using base ten blocks representations and rename them so they can use '10s' to add two numbers. They'll develop a deeper sense of mathematical reasoning and learn there really is more than just 'carrying the 1' when it comes to regrouping and renaming!

• ### Activity 2 / Animal Sanctuary Worksheet

How much do your kids love visiting the zoo? What about the animals? Ask your kids which animals they remember from their visits to the zoo, and which ones they loved the most. The manager in this zoo worksheet needs your child’s help. She needs to know how many animals she is taking care of, in order to get enough food for all the animals in the zoo. Instruct your child to use regrouping to help her figure out how many animals she has. Ask your child to check the correct answers.

• ### Activity 3 / Let's Regroup! Worksheet

This tracing sheet sure will be a world of fun for your little ones. The bright and wonderful colors and the simplicity of the exercise would make your child be eager to complete the simple equations. Instruct them to solve the equations in the worksheet by using regrouping methods. Hold their little hands as they trace on the dotted line to the correct total. After they are done, double check to see how many answers your kids got right.