Curated OER
Number Puzzles
These math puzzles are sure to get your first and second graders thinking. Nine word problems about odds and evens, as well as greater than and less than, keep learners guessing. If you're working on mental math in your class, use these...
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Number Bonds to 20
Showcase all the different ways one can pair numbers, resulting in an answer of 20. Cute images such as, a cup and water, tennis racket and ball, and a soccer ball and net help kids make the addition connection. This is a great...
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Making a Number Sentence
Youngsters can use these worksheets to practice writing equations and using math symbols. They draw a picture in each box to correctly complete the number sentence then write numbers under each picture to make number sentences. There are...
National Security Agency
Introducing Integers and Their Operations
There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class to...
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Numeracy
Students review numbers, number systems and the number operations through the use of online webpages.
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Number, Number Sense and Operations: Worksheet Four
Review a variety of mathematical skills with this worksheet. In this number sense and operations worksheet, learners solve 15 different problems that include simplifying various equations. In addition, they write the powers in order from...
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Operations with Functions
This is a very strange but fairly amazing worksheet. You plug-in the number of problems, how you'd like them arranged, and if answers should be available and click retrieve. Like magic a worksheet to your specifications pops up. This...
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Basic Addition
Introduce addition to your class with this handy and well-thought-out presentation. Addition is defined and then shown in four different examples. Images, a story problem, numeric, and number line variations of the same problem are all...
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Fairy Tales Come True
Pupils see how to solve math problems using place value. After watching an episode from Cyberchase, kids work together using hands-on materials to solve the problems given. This outstanding, ten-page activity has everything you need to...
CK-12 Foundation
Properties of Multiplication in Decimal Operations: Balloon Animals
Commutive and associative properties are the focus of a five-question interactive. Dealing with decimal multiplication and addition, mathematicians solve multiple-choice and true or false questions using a model that moves balloons along...
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Rational Number Project
Infuse your unit on fractions, decimals, and operations with a thorough module about rational numbers. With a teaching guide, learner examples, templates for instruction, and lesson rationale, the module is a solid way to emphasize the...
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Basic Math Order of Operations
In this order of operations worksheet, students complete a set of 16 simple problems. Page has multiple links to additional resources.
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Order of operations - Basic four operations
In this order of operations worksheet, students complete problems with all four basic operations containing numbers up to the number 12. Students complete 5 problems.
Illustrative Mathematics
Operations on the Number Line
A different way to look at integers is on this number line with variables in place of numbers. Learners are to look at different expressions and describe why they think the answer would be positive or negative, depending on the location...
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Numbers and Operations
Pupils practice using proportions to discover the fraction needed to use the right amount of an ingredient. They calculate the number of ounces in one gallon as well. They answer questions to complete the lesson.
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Math: Basic Number Operations
In this math learning exercise, students answer 175 questions by applying basic math operations to simple calculation and word problems.
Math Learning Center
Grade 1 Supplement Set A4 – Number and Operations: Equivalent Names
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 understanding of...
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Summary of operations with integers
In this integers worksheet, students perform a summary of how to properly perform operation on integers. Addition, subtraction, multiplication, and division operations are shown with signed integers. Dividing by zero is also covered.
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Operations on Matrices
A guided lesson using the WolframAlpha computer program. The class explores the basic operations of adding, subtracting, multiplying and dividing matrices to solve problems.
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Absolute Value and Basic Operations With Real Numbers
Middle schoolers investigate the mathematical concept of absolute value by counting the number of steps taken in two directions. Using the number line the teacher can note how they can forward and backward without changing the absolute...
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Domain: Operations and Algebraic Thinking
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
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Lesson 2 Ordering Numbers
Math wizards begin the lesson by comparing and ordering rational numbers. Using a number line, they discover the relationship between the numbers and practice ordering them in the correct way. They also review proper techniques for...
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Signed Number Operations and Absolute Value
Students examine methods for adding, subtracting, multiplying and dividing signed numbers. The observe animated illustrations of each operation. students discover the basic meaning of absolute value. They compute problems after instruction.
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Basic Mathematical Operations Using Math Tiles
Practice addition, subtraction, multiplication, and division using tiles as manipulatives. In this math operations instructional activity, young learners choose the appropriate sized tiles, arrange them according to directions given by...