Subtraction with Regrouping

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Our Subtraction with Regrouping lesson plan teaches students strategies for subtracting in math problems using regrouping. Students complete practice problems in which they use the methods outlined in this lesson in order to solidify their understanding of the lesson material.

Included with this lesson are some adjustments or additions that you can make if you’d like, found in the “Options for Lesson” section of the Classroom Procedure page. One of the optional additions to this lesson is to use drawings or manipulatives for a hands-on approach.

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Description

What our Subtraction with Regrouping lesson plan includes

Lesson Objectives and Overview: Subtraction with Regrouping introduces students to regrouping strategies for subtraction. At the end of the lesson, students will be able to subtract using these regrouping strategies. This lesson is for students in 2nd grade, 3rd grade, and 4th grade.

Classroom Procedure

Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the orange box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand. You don’t need any supplies for this lesson. To prepare for this lesson ahead of time, you can copy the handouts.

Options for Lesson

Included with this lesson is an “Options for Lesson” section that lists a number of suggestions for activities to add to the lesson or substitutions for the ones already in the lesson. An optional addition to this lesson is to have students practice problems as a group using whiteboards. Students can also work in small groups for the activity. To make sure students understand the concept of borrowing a ten and breaking it down into ones, you can use drawings or manipulatives for a hands-on approach. If you have more advanced students, you can have them regroup with three or four digit numbers.

Teacher Notes

The teacher notes page includes lines that you can use to add your own notes as you’re preparing for this lesson.

SUBTRACTION WITH REGROUPING LESSON PLAN CONTENT PAGES

Subtraction with Regrouping

The Subtraction with Regrouping lesson plan includes two content pages. The lesson begins with an example problem: 43 – 27. In this example, when you line the numbers up based on place value, there’s a smaller number on top in the ones place (3 is smaller than 7). When that happens, you need to regroup. Regrouping is borrowing or taking from somewhere else. For subtraction problems, regrouping is when you take one place value larger and add it to the next place value. In this example, we’ll take one ten (10) and add it to the ones column. We take a ten away from 43, leaving 33, and then add it to the ones, meaning we now have 13 ones. We can then subtract 7 from 13 in the ones column, for 6, and 3 from 2 in the tens column, for 1. Therefore, the final answer is 16. The lesson shows this in detail. It also includes another example problem.

If the one place only has a zero, we also need to regroup, since zero is smaller than any other number. We will follow the same regrouping rules, taking one ten from the tens place and adding it to the ones column. The lesson shows two examples of this.

SUBTRACTION WITH REGROUPING LESSON PLAN WORKSHEETS

The Subtraction with Regrouping lesson plan includes four worksheets: an activity worksheet, a practice worksheet, a homework assignment, and a quiz. You can refer to the guide on the classroom procedure page to determine when to hand out each worksheet.

FIND SOMEONE WHO CAN REGROUP ACTIVITY WORKSHEET

Students will work together with their classmates to complete the activity worksheet. Each student will find a different classmate to solve each problem on their worksheet. The student who solved it will write their name below the problem. Students will also check each other’s work.

SOLVE USING REGROUPING PRACTICE WORKSHEET

For the practice worksheet, students will solve 12 practice problems using regrouping.

SUBTRACTION WITH REGROUPING HOMEWORK ASSIGNMENT

The homework assignment asks students to solve 12 problems using regrouping.

QUIZ

This lesson includes a quiz to test students’ understanding of the lesson material. For the quiz, students will solve three problems using regrouping.

Worksheet Answer Keys

This lesson plan includes answer keys for the activity worksheet, the practice worksheet, the homework assignment, and the quiz. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.

Additional information

grade-level

2nd Grade, 3rd Grade, 4th Grade

subject

Math

State Educational Standards

LB.Math.Content.2.NBT.B.5, LB.Math.Content.3.NBT.A.2, LB.Math.Content.4.NBT.B.4

Lessons are aligned to meet the education objectives and goals of most states. For more information on your state objectives, contact your local Board of Education or Department of Education in your state.

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01/23/2023
Anonymous
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Great resoure!

Easy to find and download full lessons

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03/19/2021
Imagine M.
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Helpful

It was helpful I love this site!

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02/14/2020
JESSICA P.
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Such a good resource!!!

I'm a special education teacher having to find some extra resources to help my students catch up with their peers.

MC
10/16/2018
Melissa C.
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Subtraction with Regrouping

This lesson was a great springboard for my preparations for teaching subtraction with regrouping.

BB
02/25/2018
Brandi B.
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Excellent Lessons

Excellent and easy to use