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Assessment
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Inside Mathematics

Two Solutions

For Teachers 9th - 12th Standards
Many problems in life have more than one possible solution, and the same is true for advanced mathematics. Scholars solve seven problems that all have at least two solutions. Then three higher-level thinking questions challenge them to...
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Lesson Plan
Curated OER

Number: Negative Numbers

For Teachers 5th - 6th
Pupils solve numerical equations with negative numbers. They use the number line to compare the relationship of numbers greater than zero to those less than zero. They practice starting at various points on the number line and then...
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Unit Plan
EngageNY

Complex Numbers and Transformations

For Teachers 11th - 12th Standards
Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...
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Lesson Plan
Henrico County Public Schools

Models for Teaching Addition and Subtraction of Integers

For Teachers 5th - 8th Standards
Positive and negative numbers are everywhere in the world around us. Whether it's charged particles in atoms, a hot air balloon rising and falling in the sky, or a series of bills and checks being delivered in the mail, this resource...
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Lesson Plan
New Zealand Ministry of Education

Addition and Subtraction Pick n Mix

For Teachers 2nd - 4th Standards
Teach your class how to mentally solve whole number addition and subtraction problems using compensation from tidy numbers including equal additions. They use appropriate recording techniques and predict the usefulness of strategies for...
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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
Curated OER

What's Next?

For Teachers 5th - 7th
Teach the class how to continue a given number pattern, and have them state a rule to explain their answer. Arithmetic sequences and related worksheets are used to reinforce the concept of numerical patterns using the nthterm.
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Lesson Plan
EngageNY

Distance and Complex Numbers 1

For Teachers 11th - 12th Standards
To work through the complexity of coordinate geometry pupils make the connection between the coordinate plane and the complex plane as they plot complex numbers in the 11th part of a series of 32. Making the connection between the two...
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Assessment
Illustrative Mathematics

Find the Missing Number

For Students 1st Standards
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
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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
1
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K5 Learning

Mixed Practice Word Problems #3

For Students 2nd - 4th Standards
Seven word problems make up this mixed practice worksheet. Learners perform operations of addition and subtraction to solve problems using numbers up to 2,800. 
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Lesson Plan
Curated OER

Plotting Numbers and Test

For Teachers 6th
Sixth graders create a human number line. They determine the correct placement of various numbers ranging from -4 to 4. Additionally, they will determine the placement of numbers written as fractions and/or decimals.
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Learning
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Curated OER

Making Math More Fun

For Teachers K - 5th Standards
Trick young mathematicians into practicing their basic arithmetic with this extensive collection of fun math games. Whether you're teaching addition, subtraction, multiplication, division, place value, or even fractions, there is a game...
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Lesson Plan
Curated OER

Subtraction

For Teachers 1st - 2nd
Students explore subtraction. In this mathematics activity, students practice how to subtract numbers from 20, 100 and other whole numbers. Students realize that there are number bonds which can help with subtraction like 3 and 17 bonds...
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Worksheet
Curated OER

Order of Operations (Double Digit-Three Factors)

For Students 7th - 8th
In this math worksheet, students solve multi-step computation problems. Each problem involves three numbers and a mix of addition, subtraction and multiplication. Students use the rules of order of operations to work the problems....
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Lesson Plan
Curated OER

Subtracting With or Without Regrouping - Lesson & Worksheet

For Teachers 2nd
Second graders analyze subtraction problems. In this subtraction activity, 2nd graders examine how to subtract numbers with and without regrouping. Students work in teams to complete board races.  Assessment is provided.
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Worksheet
Curated OER

Unknown Numbers in Sums and Differences

For Students 1st - 2nd
Beginners to addition and subtraction will have fun with these three word problems, which have accompanying visuals. They complete one problem with a missing difference, one with a missing sum, and a third with a missing subtrahend....
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Worksheet
Curated OER

Negative Numbers Practice Sheet

For Students 4th - 5th
Fourth and Fifth graders should benefit from this negative and positive number addition worksheet. There are 90 problems to solve; each has a negative number plus a positive number. There are also a few subtraction problems sprinkled in...
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Lesson Plan
Curated OER

The Complex Numbers

For Teachers 9th - 10th
For this algebra worksheet, students solve 16 problems involving imaginary numbers. In the first three, students find the square root of 3 negative numbers in terms of i. Nine problems involve addition, subtraction, multiplication and...
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Worksheet
Curated OER

Subtraction Word Problems #1

For Teachers 2nd - 3rd Standards
Practice subtraction skills and word problem strategies with your second graders. After reviewing the example at the top of the page, learners solve 14 word problems involving subtraction. A great way to practice mental math!
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Unit Plan
1
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Mathematics Vision Project

Module 3: Polynomial Functions

For Students 9th - 12th Standards
An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving. 
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App
Freecloud Design

Mathmateer

For Students K - 6th Standards
Three, two, one...liftoff! Elevate math skills to new heights while having a blast. A great resource that combines entertainment and education for children of all ages.
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Worksheet
Houghton Mifflin Harcourt

Leveled Problem Solving: Adding and Subtracting Mixed Numbers

For Students 4th - 5th Standards
Using the six word problems provided, learners practice adding and subtracting mixed numbers. They help Jose, Sasha, Juanita, Stephanie, and Carlos to solve their problems!
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Worksheet
Curated OER

Word Problems That You Draw Up

For Students 1st - 3rd
What a great way to practice word problems! Scholars already familiar with addition and subtraction can take the next step with this graphic organizer, including three word problems they write out numerically. After reading each...