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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
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

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 lesson 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 bears get gross...
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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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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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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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Worksheet
Curated OER

Two Digit Addition and Subtraction (T)

For Students 2nd - 3rd
In this two digit addition and subtraction worksheet, students add and subtract two digit numbers. Students complete 49 two digit addition and subtraction problems to find the sum.
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PPT
Curated OER

Using Number lines in Addition and Subtraction

For Teachers 2nd - 3rd
Adding and subtracting can be done by counting on or counting down a number line. This presentation provides a complete demonstration and examples of how one can use a number line to solve double-digit addition and subtraction problems....
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Worksheet
Curated OER

Add and Subtract within 20 - Independent Practice

For Students 2nd - 3rd
Although this activity says it contains addition and subtraction within 20, it doesn't. Learners will have to add and subtract double-digit numbers with answers up to at least 30. However, it does provide good practice.
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Worksheet
Curated OER

Writing Equations: Addition and Subtraction 0 to 20

For Students 2nd - 3rd
In these subtraction and addition worksheets, learners write the equations for the addition and subtraction sentences. Students solve 28 problems.
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Worksheet
Curated OER

Addition and Subtraction Within 40

For Students 2nd - 5th
In this addition and subtraction activity, students complete word problems containing addition and subtraction with numbers up to 40. Students complete 20 problems.
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Worksheet
Curated OER

Word Problems Using Addition and Subtraction

For Students 2nd - 3rd
For this word problems worksheet, students solve 11 addition or subtraction story problems about four children and their marbles. Students draw pictures or fill in the table to help solve the problems.
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Interactive
Curated OER

My Test Book: Addition and Subtraction 2

For Students 2nd - 3rd
In this online interactive math skills instructional activity, students solve 10 multiple choice math problems regarding 2-digit addition and subtraction. Students may view the correct answers.
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Worksheet
Curated OER

Rapid Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction worksheet, students solve as many of the 40 addition and subtraction math problems as fast as they can with as much accuracy as they can.
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Worksheet
Curated OER

Independent Practice 1: Missing Addition or Subtraction Sign

For Students 2nd - 4th
In this addition and subtraction worksheet, students supply a plus (+) or a minus (-) sign in the square to make the number sentence true for twenty problems.
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Worksheet
DK Publishing

Tricky Word Problems - Choosing the Operation

For Students 2nd - 3rd Standards
Decipher the equations in these addition and subtraction word problems. Two examples at the top of the page guide second graders as they solve the rest of the problems. There is no space to write out the equation, but there is a place to...
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Lesson Plan
Curated OER

Same As

For Teachers K - 3rd
Explore the concept of the equals symbol. In this mathematical symbols lesson, learners discover the meaning of the equals sign (symbol). They also construct addition and subtraction sentences to understand the concept of equal parts.