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App
Key Stage Fun

Squeebles Addition & Subtraction

For Students K - 3rd Standards
The math monster is at it again, this time stealing all the cars and drivers that were to take part in the cart race. If their addition and subtraction facts are up to the challenge, young mathematicians can win the drivers' freedom and...
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Worksheet
Curated OER

Addition and Subtraction Problems: numbers to 20

For Students 2nd - 4th
You'll never be out of subtraction worksheets again. Here are 11 different sheets that require learners to add or subtract to find sums or differences up to or less than 20. Perhaps these can be used at home, at a work station, or to...
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Assessment
Mathed Up!

Addition and Subtraction

For Students 1st - 3rd Standards
After watching a brief video on addition and subtraction, young mathematicians are put to the test. Including 12 problems, individuals solve word problems to find the least number, total amount, and difference of numbers. 
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Worksheet
Curated OER

Addition and Subtraction: numbers to 20

For Students 2nd - 4th
Does your school encourage learning math facts or fast facts? If it does you can definitely use this resource. There are 20 lists, each list contains 10 problems, and each problem set focuses on adding and subtracting specific numbers,...
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Worksheet
Curated OER

Christmas Themed Math Word Problems-Up To 20

For Students 1st - 2nd
Your class will need to use addition and subtraction to solve these word problems. There are 2 Christmas themed problems to solve and a work space for each.
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Worksheet
Helping with Math

Addition: Number Bonds to 20

For Students 1st - 3rd Standards
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.
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Activity
Collaborative Learning Project

Four in a Row Addition and Subtraction

For Teachers 1st - 3rd Standards
Scroll down to find four fun addition and subtraction partner game boards, complete with endless opportunities for practice with numbers 0-38. Kids choose numbers from a number box and, depending on the game, either find the sum or the...
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Worksheet
Curated OER

Addition and Subtraction word problems

For Students 2nd - 3rd
In this addition and subtraction worksheet, students solve word problems involving one and two digit numbers. Students solve 5 problems.
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Lesson Plan
Curated OER

Developing Strategies for Addition and Subtraction

For Teachers 2nd - 4th
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
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Lesson Plan
Curated OER

Simplifying Expressions (Addition and Subtraction)

For Teachers 7th
Seventh graders simplify algebraic expressions using addition and subtraction to combine like items and solve for the variable. They work with inverse operations to solve equations with guided practice. Everyone completes various...
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Worksheet
Curated OER

One More or One Less?

For Students K - 2nd Standards
Hook new mathematicians with a candy-themed approach to addition and subtraction. They examine 10 numbers (not exceeding 19) printed on candy wrappers. For each, learners calculate and record numbers with values one more and one...
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Worksheet
DK Publishing

Addition Fact Families

For Students 1st - 2nd Standards
Fact families are an excellent way to connect math operations for beginners to addition and subtraction. Use the examples here to review this concept before scholars try these on their own. For each, they examine two related number...
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Worksheet
Curated OER

Two-Digit Addition and Subtraction (No Regrouping)

For Students 1st - 2nd
If practice makes perfect, this sheet cultivates perfection among pupils learning to add and subtract 2-digit numbers. No regrouping is required, so this high repetition tool will help lay a strong foundation for that next step. Key is...
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Lesson Plan
Curated OER

Addition and Subtraction Facts to 20 - Manipulative

For Teachers 1st - 3rd
Here is a good lesson that will allow your student to practice their addition and subtraction facts to 20. They practice facts using fact cards and practice strategies such as doubles strategies, and count to 10 strategies.
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Lesson Plan
Curated OER

Yummy Gummy Subtraction

For Teachers K - 3rd
Here is a quick 15 minute instructional activity intended to introduce subtraction. Learners count and subtract gummy bears to complete 5 problems. The lessons suggest that the gummy bears can be saved and used the next day, but gummy...
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Lesson Plan
Curated OER

Addition And Subtraction of Rational Expressions

For Teachers 6th - 8th
Young algebraic thinkers find the solutions to 20 rational expressions using addition and subtraction. They pay close attention to following the Order of Operations!
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Lesson Plan
Illustrative Mathematics

Kiri's Mathematics Match Game

For Teachers K - 2nd Standards
Learning math is so much more fun when it involves playing games. Following the rules of the classic game Memory, young mathematicians flip over two cards at a time as they look for numbers whose sum or difference is equal to the value...
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Lesson Plan
Curated OER

Addition and Subtraction Facts to 20

For Teachers 2nd - 3rd
Fact families, and the relationship between addition and subtraction are the foucs of this lesson. Learners explore strategies to help with their addition and subtraction facts. They use doubles, related facts, and fact families to help...
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Lesson Plan
Houghton Mifflin Harcourt

Addition and Subtraction Facts to 20

For Teachers K - 2nd Standards
First graders act out number stories from number cards. In order to learn about addition and subtraction up to 20 lesson, learners become the manipulatives and line up to show the number stories.
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Worksheet
Curated OER

Choose the Operation: Plus or minus (up to 100)

For Students 2nd - 4th Standards
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
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Lesson Plan
BBC

Simple Addition and Subtraction

For Teachers K - 1st
Here is a wonderful lesson designed for young mathematicians. In it, they employ simple addition and subtraction strategies in order to solve word problems. There are some excellent activity sheets embedded in the plan to make the...
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Worksheet
Curated OER

Add and Subtract Within 20

For Students K - 2nd
Break down addition and subtraction into short sentences using this brief worksheet. Each question prompts scholars to make a number by doing three math operations. For the first, they make 10 by adding three, adding five, and...
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Worksheet
Curated OER

Subtraction with 3 Digit Numbers #2

For Students 2nd - 3rd
Take subtraction to the next level with this resource, which contains 20 subtraction problems with three-digit numbers. After completing these problems, second and third graders work on five additional problems, which involve two-digit...
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PPT
Curated OER

20 Questions: Math Questions

For Teachers 1st - 2nd
Here are 20 questions just waiting for a class to complete them. Each of the problems is either subtraction or addition, under or up to 20. Learners complete each question, then exchange papers for a peer to grade. Answers are included.