Module 22: 3Digit SubtractionMath 2B  Course Guide
Module Overview:
In this module, students will subtract multiples of 100 mentally, identify the place values of a 3digit number, and subtract a 3digit number by breaking it apart into place values. Students will solve word problems using 3digit subtraction.
Module Materials:
Lesson #  Lesson Title  Material(s) 

1  Subtract Hundreds 
crayons or colored pencils pen or pencil 
2  Break Apart 3Digit Numbers to Subtract (without Regrouping) 
scissors crayons or colored pencils pen or pencil 
3  Break Apart 3Digit Numbers to Subtract (with Regrouping) 
crayons or colored pencils pen or pencil 
4  Subtract 3Digit Numbers 
crayons or colored pencils pen or pencil 
5  Problem Solving: 3Digit Subtraction 
crayons or colored pencils pen or pencil 
Module Objectives:
Lesson #  Lesson Title  Objective(s) 

1  Subtract Hundreds 

2  Break Apart 3Digit Numbers to Subtract (without Regrouping) 

3  Break Apart 3Digit Numbers to Subtract (with Regrouping) 

4  Subtract 3Digit Numbers 

5  Problem Solving: 3Digit Subtraction 

Module Key Words:
Key Words 

thousand chart mental math placevalue chart whole part difference regroup word problem key words 
Module Assignments:
Lesson #  Lesson Title  Page #  Assignment Title 

1  Subtract Hundreds  4  HandsOn 
2  Break Apart 3Digit Numbers to Subtract (without Regrouping)  4  HandsOn 
3  Break Apart 3Digit Numbers to Subtract (with Regrouping)  4  HandsOn 
4  Subtract 3Digit Numbers  4  HandsOn 
5  Problem Solving: 3Digit Subtraction  4  HandsOn 
Learning Coach Notes:
None
Module Guiding Questions:
When a student starts a lesson ask them questions to check for prior knowledge and understanding and to review concepts being taught. At the end of the lesson ask the questions again to see if their answer changes.
Lesson Title  Question 

Subtract Hundreds 

Break Apart 3Digit Numbers to Subtract (without Regrouping) 

Break Apart 3Digit Numbers to Subtract (with Regrouping) 

Subtract 3Digit Numbers 

Problem Solving: 3Digit Subtraction 

Module Video Questions:
When a student watches a video take time to ask them questions about what they watched. Suggested questions for the videos in this module are listed here. Suggestion: Have the student watch the entire video first all the way through. Then have them watch the video a second time, as they watch it pause the video and ask the questions.
Lesson Title  Video  Question 

Subtract Hundreds  Subtract One Hundreds 

Break Apart 3Digit Numbers to Subtract (without Regrouping)  Break Apart 3Digit Numbers to Subtract 

Break Apart 3Digit Numbers to Subtract (with Regrouping)  3Digit Subtracting with Regrouping 

Problem Solving: 3Digit Subtraction  Subtraction Word Problems 

Module Suggested Read Aloud Books:
Take time to read to your student or have them read aloud to you. Read a different book each day. While reading the book point out concepts being taught. You may purchase these books or find them at your local library. Suggested things to discuss while reading the book:
 What is the main idea?
 What are three things new you learned?
 How does this book relate to what you are learning about?
#  Book  Author  Lexile Level 

Module Outing:
Take some time to apply what your student is learning to the real world. Suggested outings are below.
#  Outing 
