Scholastic
Study Jams! Addition with Regrouping
Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the...
Curated OER
Make 10: Addition Strategy
What a brilliant way to present this topic! This presentation uses counters and an interactive techniques to show young mathematicians how to add numbers by creating groups of ten. The graphics make it easy to understand this concept....
Illustrative Mathematics
Bundling and Unbundling
Seven tens, plus five ones, equals 75. Five ones, plus seven tens, also equals 75. These are the types of equations learners are asked to make true in a worksheet with 11 unfinished equations.
Curated OER
1st Grade Strategy Worksheets
Enhance your first grade math curriculum with a thorough resource packet. It includes worksheets for practicing counting on and counting back, addition and subtraction facts to 10, and addition and subtraction doubles.
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Illustrative Mathematics
Many Ways to Do Addition
A great aspect of teaching math is that children have the freedom to solve problems using a variety of different strategies. The focus of this lesson is for young mathematicians to become aware of many ways of answering addition...
Birdville Independent School District
Friendly Numbers
There are a number of different strategies young mathematicians can use when adding two-digit numbers. This lesson focuses on making addition easier by rounding the addends to friendly numbers, with the resulting sum being adjusted...
Curated OER
Making a Ten
An addition table supports third graders as they learn strategies to improve their math fluency. When finding sums greater than ten, students are taught how to first make a ten and then add on the rest. A similar method is also...
Illustrative Mathematics
Building toward fluency
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Curated OER
Hidden Hundreds
This is a great puzzle like challenge for your advanced learners. They are given 5 problems to solve, they must show how many ways they can make to provided number using the given numbers in the box. For example: To make 800 they need to...
Curated OER
An Easier Way to Count: Using Groups of 10
Students explore their counting skills. In this counting lesson, students group objects in sets of 10 to practice counting them. Students also practice graphing the sets of objects they count.  This lesson incorporates the use a video...
Curated OER
Halloween Math Worksheet - Addition
Perfect for the holiday season, this Halloween math worksheet is great practice for your class. Students will solve 3 equations by using the pumpkin, ghost, and witch hat counters.
Curated OER
Make a Match
Second graders examine the relationship between addition and subtraction. In this number sense lesson, 2nd graders practice their computation skills and use various strategies (including manipulatives and calculators)  to add and subtract.
Curated OER
Number Lines
First graders examine the number line as an addition strategy. In this math lesson, 1st graders create a number line and use it to help them solve addition problems.
Curated OER
Math Lesson Plan: Pumpkin Addition and Subtraction
Students practice their addition and subtraction skills. In this seasonal math lesson plan, students create pumpkin worksheets that may be used to practice addition and subtraction number sentences.
Curated OER
My Test Book: Addition and Subtraction 2
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding 2-digit addition and subtraction. Students may view the correct answers.
Curated OER
Complete the Number Sentences 14
In this online interactive math skills learning exercise, students respond to 1 question that requires them to fill in the blank in an addition number sentence. Students may submit their answers to be scored.
Curated OER
Complete the Number Sentences 13
In this online interactive math skills worksheet, students respond to 1 question that requires them to fill in the blank in an addition number sentence. Students may submit their answers to be scored.
Curated OER
Fill in the Blank: Place Value 52
In this online interactive place value activity, students examine an addition sentence and fill in the blanks to appropriately finish it. Students may submit their answers to be scored
Curated OER
My Test Book: Addition and Subtraction
In this math skills worksheet, students solve 10 multiple choice math problems that require them to use the addition and subtraction skills. Students may view the correct answers.
Curated OER
Complete the Number Sentence 16
In this online interactive math skills worksheet, students respond to 1 question that requires them to fill in the blank in an addition number sentence. Students may submit their answers to be scored.
Curated OER
Complete the Number Sentences 9
In this online interactive math skills activity, students respond to 1 question that requires them to fill in the blank in an addition number sentence. Students may submit their answers to be scored.
Curated OER
Complete the Number Sentences 12
In this online interactive math skills worksheet, students respond to 1 question that requires them to fill in the blank in an addition number sentence. Students may submit their answers to be scored.
Curated OER
Fill in the Blank: Place Value 2
In this online interactive place value worksheet, students examine an addition sentence and fill in the blanks to appropriately finish it. Students may submit their answers to be scored.