3.NBT.A.2 Lesson Plans
CCSS.MATH.CONTENT.3.NBT.A.2
:"Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction."
Our Take: A third grader should be confident adding and subtracting within 1000. Most students will have internalized a variety of strategies that help them solve these types of problems.
These lesson plans can help students practice this Common Core State Standards skill.
Lesson Plans
Fluently Adding Within 1000
Lesson plan
Fluently Adding Within 1000
Adding big numbers can be tricky, but this lesson introduces your students to a strategy that makes it less intimidating! Using the place value strategy will make the task less daunting.
3rd Grade
Math
Lesson plan
Fluently Subtracting within 1000
Lesson plan
Fluently Subtracting within 1000
Start your students on subtracting three-digit numbers with this lesson that breaks the problems down by place values!
3rd Grade
Math
Lesson plan
Place Value: Digit Game
Lesson plan
Place Value: Digit Game
Help your students understand place values with this lesson that catches their interest using a story book. Students will go one to play a riddle game both in a group and individually.
3rd Grade
Math
Lesson plan
Supply and Demand
Lesson plan
Supply and Demand
Do you want an interactive lesson that puts all the decision making in the palm of your students' hands? Supply and demand is a fun, interactive, and hands on activity that will help your students understand economics on a smaller scale.
3rd Grade
Math
Lesson plan
Strategic Drawings
Lesson plan
Strategic Drawings
Help your students discover the power behind base ten drawings! Regrouping is a challenge for many students, but with this hands-on lesson, your students will be empowered with a new strategy to tackle difficult regrouping problems.
3rd Grade
Math
Lesson plan
Sweet Solutions
Lesson plan
Sweet Solutions
With this pastry themed lesson, your students will apply addition strategies to solve two-step, three-digit addition word problems. Finding the solutions will be sweet!
3rd Grade
Math
Lesson plan
Regrouping with Popsicle Sticks: Double-Digit Subtraction
Lesson plan
Regrouping with Popsicle Sticks: Double-Digit Subtraction
Can you break a ten? An everyday exchange of money can help students think about regrouping to subtract. Students will use bundled popsicle sticks to see how values grouped into tens can be regrouped into ones to allow us to subtract.
3rd Grade
Math
Lesson plan
“Subtract One” Strategy: Subtracting From Zeros Without Borrowing
Lesson plan
“Subtract One” Strategy: Subtracting From Zeros Without Borrowing
Many students cringe when they see a subtraction problem with multiple zeros. The “Subtract One” strategy in this lesson involves reducing the top number by one to turn the 0 digits into 9’s and then adding the one back in at the end.
3rd Grade
Math
Lesson plan
Subtraction with Regrouping
Lesson plan
Subtraction with Regrouping
Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.
3rd Grade
Math
Lesson plan
Subtraction Detectives: Missing Numbers
Lesson plan
Subtraction Detectives: Missing Numbers
In this lesson, students must become detectives to solve for the missing number in each subtraction problem. They will develop and use their powers of mathematical reasoning using number bonds to find differences.
3rd Grade
Math
Lesson plan
Addition with Regrouping
Lesson plan
Addition with Regrouping
In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.
3rd Grade
Math
Lesson plan
Borrowing Center
Lesson plan
Borrowing Center
Using base ten blocks, cards, and clear cups, your students will practice the concept of borrowing for subtraction problems in this lesson.
2nd Grade
Math
Lesson plan
Two-Step Word Problems with Mixed Operations - Gamified!
Lesson plan
Two-Step Word Problems with Mixed Operations - Gamified!
Students will have fun learning the Read, Draw, Write (RDW) strategy on two-step, mixed operation problems. First they will learn RDW, and then they will practice it in a game called Four in a Row.
3rd Grade
Math
Lesson plan
Make a Big Difference
Lesson plan
Make a Big Difference
Master rounding and estimating skills by having students challenge their classmates in the Make a Big Difference game. Roll three dice two times to arrive at two three-digit numbers. The largest difference wins!
3rd Grade
Math
Lesson plan
Hop! Hop! Hop!: Strategic Number Lines
Lesson plan
Hop! Hop! Hop!: Strategic Number Lines
With this movement-integrated lesson, students will use their energy to practice three-digit addition on a number line! Part of this lesson is designed for the outdoors, but the activities can easily be brought inside on a rainy day.
3rd Grade
Math
Lesson plan
Stepping Through Addition and Subtraction Word Problems
Lesson plan
Stepping Through Addition and Subtraction Word Problems
Use this lesson to teach your students how to determine if they should use addition, subtraction, or both operations to solve a word problem by following four simple steps.
3rd Grade
Math
Lesson plan
Thinking Deeply About Word Problems
Lesson plan
Thinking Deeply About Word Problems
Word problems can be overwhelming to students, but if they have a tool to help them, they can handle it! Use this as a stand alone lesson or alongside Stepping Through Addition and Subtraction Word Problems.
3rd Grade
Math
Lesson plan
Decomposing Numbers
Lesson plan
Decomposing Numbers
Why make things harder on ourselves? Teach your students to decompose numbers to make math easier! Use this as a stand alone lesson or a pre-lesson for Decompose to Multiply: 6, 7, 8, and 9.
3rd Grade
Math
Lesson plan
Get Together to Regroup
Lesson plan
Get Together to Regroup
Teach your students to confidently follow the steps of regrouping in subtraction problems. Use this as a stand alone lesson or alongside Regrouping with Popsicle Sticks: Double-Digit Subtraction.
3rd Grade
Math
Lesson plan
Word Problem Comprehension
Lesson plan
Word Problem Comprehension
Make sure your students understand the word problem before they begin to solve it! Use this as a stand alone lesson or a pre-lesson for Two-Step Word Problems with Mixed-Operations - Gamified!
3rd Grade
Math
Lesson plan
