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4,395 results
addition and subtractionClear All
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Worksheet
Curated OER

Check Subtraction

For Students 2nd - 3rd
In this checking subtraction instructional activity, students learn to check a subtraction problem by using addition. Students solve and check 7 problems in which three digit numbers are subtracted with borrowing.
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Lesson Plan
Curated OER

Codebreaker Math

For Teachers 2nd - 3rd
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
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Worksheet
Curated OER

The Case of the Missing Numbers

For Students 1st - 3rd
For this finding the unknown numbers worksheet, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
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Worksheet
Curated OER

3-Digit Subtraction and Addition

For Students 2nd - 3rd
For this 3-digit subtraction and addition worksheet, students problem solve with regrouping. In this fill in the blank worksheet, students answer sixteen problems.
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Worksheet
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Curated OER

Inverse Relationships (5)

For Students 2nd - 3rd
In this addition and subtraction fact family instructional activity, students use the numbers given to fill in the missing numbers in each pair of fact families. Students solve 60 problems.
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Worksheet
Curated OER

1st Grade Strategy Worksheets

For Students K - 2nd Standards
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.
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Lesson Plan
Alabama Learning Exchange

Ice Fishing is for the Birds

For Teachers K - 1st Standards
Approach addition with young mathematicians in an engaging way through this penguin-inspired activity. In small groups, scholars think about times they have used addition in their real lives (there are some suggestions given), then watch...
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Activity
Math Learning Center

Grade 1 Supplement Set A4 – Number and Operations: Equivalent Names

For Teachers 1st Standards
Engage young mathematicians in developing their basic arithmetic skills with these great hands-on activities. Using Unifix® cubes to model a variety of single digit addition and subtract problems, children build a basic...
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Worksheet
Math Centre

Fractions: Adding and Subtracting

For Students 4th - 7th Standards
Young mathematicians piece together the puzzle of fractions. Starting with the addition and subtraction of fractions with like denominators, this series of example problems and skills practice exercises transitions students...
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Worksheet
Curated OER

Reading Tally Charts #2

For Students K - 2nd Standards
Keep count with tally marks! First graders practice reading tally marks with this straightforward learning exercise. They work with interpreting data from a chart, as well as working with addition and subtraction under 20. A great math...
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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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Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: Fill in the Boxes 1

For Students 8th - 10th Standards
Eliminate a color by dragging shapes. The interactive provides a graphical color display that allows for pupils to solve a linear system by elimination. Learners combine figures following set rules for positive and negative shapes. The...
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Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: XYZ Tiles

For Students 8th - 10th Standards
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
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Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: Fill in the Boxes 2

For Students 8th - 10th Standards
Systematically combine shapes to arrive at one solution. The resource models a system of linear equations using colored shapes. Pupils follow rules to combine circles and squares to add the two equations together, resulting in one...
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Interactive
CK-12 Foundation

Simplify Sums or Differences of Single Variable Expressions: Addition and Subtraction of Like Terms

For Students 7th - 9th Standards
Investigate the process of combining like terms using an interactive animation. Scholars tackle simplifying expressions by manipulating rectangles that represent the terms. They add and subtract terms to arrive at the result.
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Worksheet
Curated OER

Addition and Subtraction

For Students 2nd - 3rd
In this addition and subtraction worksheet, students fill in missing numbers in addition and subtraction problems, helping "Molly get out of the pyramid." A reference web site is given for additional activities.
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Worksheet
Curated OER

Addition Subtraction 2

For Students 6th - 10th
In this sum and difference learning exercise, students find the sum and differences of equations with whole numbers and variables. Students complete 6 equations.
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Worksheet
Curated OER

Addition and Subtraction

For Students 5th - 8th
In this addition and subtraction activity, students complete addition and subtraction problems that contain negatives, brackets, and more. Students complete 10 problems.
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Worksheet
Curated OER

Decimal Addition and Subtraction for Grade 3

For Students 3rd
In this decimal addition and subtraction for grade 3 worksheet, 3rd graders answer 10 multiple choice questions, not interactively, with the answers available online.
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Lesson Plan
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Curated OER

Food Pyramid Power: Looking Back and Moving Forward

For Teachers Pre-K - 2nd
Students show their knowledge of properties of objects as it pertains to sorting and creating patterns. In this food pyramid power activity, students show their ability to use whole numbers in different representations by appling...
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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.
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Worksheet
Curated OER

Integer Addition and Subtraction (B)

For Students 5th - 6th
In this integers worksheet, students solve 30 problems in which positive and negative numbers are added and subtracted. There is no instruction on the page.
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Worksheet
Curated OER

Dealing With Money and Measurement- Addition and Subtraction of Decimals

For Students 4th - 5th
In this dealing with money and measurement worksheet, learners practice adding and subtracting with decimals. They complete 12 short word problems and check their answers online.
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Worksheet
Curated OER

Double Deckers- Addition and Subtraction Practice

For Students 1st - 2nd
In this addition and subtraction worksheet, students complete number sentences using the given digits. They write an addition problem on top of a subtraction problem by filling in the blanks that are shown in pictures of double decker...

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