Turn addition with regrouping into a clear, concept-first small-group routine with this 2nd Grade Addition With Regrouping Small Group Math Routine — a structured resource that helps students add two-digit numbers within 100 by composing a new ten using place value models, base-ten drawings, place value charts, the standard algorithm, and partial sums.

This is not a random regrouping worksheet packet.

This is not shortcut practice that teaches students to “carry the 1” without understanding what the 1 means.

This is not a quick algorithm page that skips the place value reasoning behind regrouping.

This is a structured 2nd Grade Addition With Regrouping Routine designed to help students understand that regrouping means 10 ones can be bundled into 1 new ten. Students learn why the new ten belongs in the tens column and how that connects to the standard algorithm.

What makes this resource different

Most regrouping resources give students procedural practice.

This resource gives teachers a complete small-group teaching routine.

Students learn to connect:

Tens and ones → Add ones first → Check for 10 or more → Compose a new ten → Record the new ten → Add tens → Explain the sum

The routine follows a predictable structure:

I Do → We Do → You Do → Exit Ticket → Regrouping Decision

Teachers model regrouping with place value charts and base-ten drawings, connect the model to the standard algorithm, release students to differentiated practice, and use exit tickets plus observation tools to decide who needs re-engagement, on-grade practice, or challenge work.

✔ 24 Print-Ready Pages
✔ 5 Reusable Small-Group Sessions
✔ 20–30 Minute Sessions
✔ Recommended for 4–6 Students
✔ Regrouping Strategies Anchor Chart
✔ Place Value Charts
✔ Base-Ten Drawing Support
✔ Standard Algorithm Practice
✔ Partial Sums Strategy
✔ Modified / Scaffolded Practice
✔ On-Grade Practice
✔ Challenge & Extension Practice
✔ Common Misconceptions Guide
✔ Corrective Teacher Language
✔ 4 Cut-Apart Exit Tickets
✔ Observation Checklist
✔ Re-Engagement Guide
✔ Answer Keys Included
✔ Standards Alignment Included

WHAT’S INCLUDED

T-0 Quick Reference & Print Guide

The print guide shows what to print for teacher use, on-grade students, modified students, and challenge students. It also includes a 5-session guide:

Session 1 — Composing a New Ten
Students add ones first, recognize when the total is 10 or more, and record the new ten on a place value chart.

Session 2 — Base-Ten Drawings & Bundling Ones
Students draw tens and ones, then bundle 10 ones into a new tens rod.

Session 3 — Standard Algorithm & Regrouping Notation
Students connect place value charts to the written algorithm and learn what the small 1 represents.

Session 4 — Partial Sums & Strategy Choice
Students use partial sums as another strategy and explain why regrouping was needed.

Session 5 — Mixed Review, Transfer & Re-Engagement
Students review, extend, or receive targeted support based on exit ticket data.

T-1 Teacher Overview

The teacher overview explains the focus of the routine: adding two-digit numbers within 100 when the ones digits total 10 or more.

The skill progression is:

Tens & ones review → Add ones → Check for 10 or more → Compose a new ten → Place value chart → Standard algorithm → Partial sums → Strategy explanation

This is Resource 3 in the 2nd Grade Addition & Subtraction Small Group Bundle. It builds directly from Addition Within 100 and prepares students for Subtraction With Regrouping by strengthening the idea of composing and decomposing tens.

T-1a Common Misconceptions

The misconceptions guide helps teachers respond to regrouping errors with targeted corrective language.

It addresses students who write 27 + 16 = 313, forget to add the regrouped ten, put the regrouped 1 in the ones place, regroup when the ones total is less than 10, describe regrouping only as “carrying,” misalign place value columns, or solve correctly without explaining why the new ten belongs in the tens column.

Standards Alignment

This routine is aligned primarily to CCSS 2.NBT.B.5, with supporting connections to 2.NBT.B.7 and 2.NBT.B.9.

The resource focuses on adding two-digit numbers within 100 using place-value-based strategies, concrete models, drawings, written methods, and explanation. Three-digit addition, subtraction with regrouping, word problems, and a full error-analysis routine are intentionally saved for later bundle resources.

Anchor Chart — Regrouping Strategies

The anchor chart gives students a 4-step process:

1. Read the problem
2. Break apart tens and ones
3. Add ones and check for 10+
4. Explain and check

It reinforces the key idea that when ones add up to 10 or more, students compose 1 new ten and keep the leftover ones in the ones place.

I Do Teacher Modeling

I Do Part 1 — Composing a New Ten

Teachers model regrouping with place value charts using examples such as 27 + 16, 34 + 28, 45 + 19, and 58 + 24.

Students see that when the ones total is 10 or more, 10 ones become 1 new ten, and the leftover ones stay in the ones place.

I Do

Part 2 — Connecting Models to the Standard Algorithm

Teachers model how the place value chart connects to the standard algorithm using examples such as 46 + 37, 29 + 48, 65 + 17, and 38 + 56.

Students learn that the small 1 above the tens column is not a trick — it represents the new ten they composed from 10 ones.

We Do Guided Practice

We Do Part A — Recording the Regrouped Ten

Students practice adding with regrouping using place value charts and the standard algorithm.

They solve problems such as 36 + 25, 48 + 19, 53 + 38, 26 + 47, 19 + 64, and 35 + 46, while recording the new ten accurately.

We Do

Part B — Partial Sums & Checking Reasonableness

Students add tens, add ones, combine partial sums, check reasonableness, and analyze an error where a student solves 35 + 28 as 53 by forgetting the new ten.

This section helps students compare strategies and understand regrouping beyond the written algorithm.

You Do

Student Practice On-Grade Practice

Students independently solve two-digit addition problems that require regrouping using place value charts, quick drawings, break-apart strategies, standard algorithm notation, partial sums, and explanation prompts.

Modified / Scaffolded Practice

Modified pages include smaller numbers, base-ten block support, partially completed charts, pre-filled structure, and sentence frames for students who need more guidance.

Challenge & Extension Practice

Challenge pages ask students to solve with more independence, choose efficient strategies, explain regrouping, check reasonableness, and analyze errors.

Exit Tickets and Assessment Tools Cut-Apart Exit Tickets

Four exit tickets help teachers check whether students can add with regrouping, compose a new ten, record the new ten correctly, and explain why regrouping was needed.

Observation Checklist

The checklist helps teachers track whether students can add ones first, identify when ones total 10 or more, compose a new ten, record regrouping correctly, add tens including the new ten, and explain the strategy.

Re-Engagement Guide

The re-engagement guide gives next steps when students need support, including returning to base-ten drawings, rebuilding with place value charts, practicing 10 ones = 1 ten, and targeting specific regrouping errors.

Answer Keys

Answer keys are included for on-grade practice, modified/scaffolded practice, challenge/extension pages, and exit tickets.

The small-group workflow this resource creates

Teachers choose the session focus, prepare the anchor chart, place value charts, base-ten tools, student pages, and exit tickets.

The lesson cycle is simple:

Model → Add ones → Compose a new ten → Record → Add tens → Explain → Check → Regroup

Teachers model with the I Do pages, guide students during We Do, assign the right You Do tier, and use exit ticket evidence to decide who is ready to move forward, who needs another session, and who is ready for challenge work.

Why this routine works for 2nd grade addition

Second graders need more than a memorized “carry the 1” rule.

They need to understand that regrouping happens because the ones total is 10 or more, and that 10 ones can be composed into 1 ten without changing the total value.

This routine helps students connect concrete models, place value charts, and the standard algorithm so regrouping becomes meaningful instead of mechanical.

This resource works for:

2nd grade addition with regrouping
Two-digit addition small groups
Adding within 100
Composing a new ten
Place value addition
Base-ten model practice
Standard algorithm introduction
Partial sums strategy
Guided math teacher table lessons
Beginning-of-year addition review
Small-group reteaching after diagnostic data
Students who forget the new ten
Students who write 313 for 27 + 16
Students who need help explaining regrouping
2.NBT.B.5 practice
2nd Grade Addition & Subtraction Bundle instruction

Supported Grade 2 math skills

Addition with regrouping
Adding two-digit numbers
Adding within 100
Composing a new ten
10 ones = 1 ten
Tens and ones
Place value charts
Base-ten drawings
Standard algorithm notation
Partial sums
Regrouping explanation
Recording the new ten
Checking reasonableness
Error analysis with regrouping mistakes
Conceptual readiness for subtraction with regrouping and three-digit addition

Supported Grade 2 math standards

2.NBT.B.5 — Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

2.NBT.B.7 — Add and subtract within 1,000 using concrete models or drawings and strategies based on place value, and relate the strategy to a written method.

2.NBT.B.9 — Explain why addition and subtraction strategies work, using place value and the properties of operations.

The primary focus is 2.NBT.B.5. The routine uses 2.NBT.B.7 and 2.NBT.B.9 as supporting standards for concrete models, written methods, composing tens, and explaining why regrouping works.

The questions this resource answers:

How do I teach addition with regrouping conceptually?

How do I help students understand what “carrying the 1” means?

How do I teach students that 10 ones can become 1 ten?

How do I help students record the regrouped ten correctly?

How do I connect base-ten models to the standard algorithm?

How do I help students stop writing answers like 313 for 27 + 16?

How do I support students who forget to add the new ten?

How do I differentiate addition with regrouping practice?

How do I know who is ready for subtraction with regrouping?

How do I turn exit tickets into regrouping decisions?

This resource is NOT:

A full addition unit.
A random worksheet packet.
A full-year math curriculum.
A one-day activity.
A shortcut-only regrouping lesson.
A three-digit addition routine.
A subtraction with regrouping routine.
A full word-problem resource.

It is a focused 2nd Grade Addition With Regrouping Small Group Math Routine designed to help students understand regrouping as composing a new ten before moving into subtraction with regrouping, larger-number computation, and word problems.

Why Teachers Choose Structured Math Solutions

Structured Math Solutions resources are built for teachers who want small-group math to feel clear, organized, and doable.

Every resource is designed around grade-specific skills, predictable routines, visual models, teacher-friendly planning, and practical classroom systems.

This routine helps 2nd grade teachers move students beyond “carry the 1” shortcuts and into true regrouping understanding — using place value charts, base-ten drawings, standard algorithm connections, differentiated practice, error analysis, and evidence-based regrouping.