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Interactive
ABCya

Gobble Squabble

For Students K - 5th Standards
A Thanksgiving-themed interactive boosts addition, subtraction, multiplication, and division facts. Using the keyboard's arrows, players navigate a turkey through a maze, gobbling up as many berries as possible without getting tagged by...
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Interactive
PHET

Make a Ten

For Students 1st - 2nd Standards
Rate the resource as a perfect 10. Pupils use an interactive to help add and subtract numbers. They first explore how to express whole numbers using hundreds, tens, and ones, then explore how to add whole numbers by combining to make...
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Interactive
CK-12 Foundation

Addition of Integers: Number Blocks

For Students 3rd - 8th Standards
A five-question interactive provides a horizontal number line where integers are stacked on top of one another to find solutions of addition problems. Mathematicians move numbers to the numbers line, as numbers build higher, the sum of...
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Assessment
Concord Consortium

Perfect Ten

For Students 9th - 12th Standards
How many ways can you make 10? Class members tackle three problems to find all possible ways three numbers add to be 10. The first is with positive integers, secondly with non-negative integers, and finally with real numbers. Pupils also...
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Activity
Illustrative Mathematics

Hitting the Target Number

For Students 2nd Standards
Make combinations to reach the target. Learners play a game to add and subtract numbers between 0 and 10 to reach a target number between 10 through 20. Teachers use the game to help pupils learn efficient ways to add and subtract within...
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Activity
Illustrative Mathematics

Measuring Blocks

For Students 1st Standards
Stack them together to get a measurement. The short activity has pupils work in pairs to measure the lengths of two blocks and then determine the length of the two blocks together. The groups then determine an equation that represents...
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Learning
Curriculum Corner

Sports of All Sorts

For Teachers 1st - 3rd Standards
Do your students love sports? Do they love math and reading? If the first answer is yes and the second is no, a resource with sports-themed math and literacy games may change their minds! Learners move through stations to practice...
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Assessment
Concord Consortium

The Trouble with Tables

For Students 2nd - 5th Standards
Tackle these tables. A performance task has learners complete two puzzles using addition and subtraction. They must fill in tables with missing addends, sums, minuends, subtrahends, or differences.
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Worksheet
Curriculum Corner

Spring Find a Fact Addition

For Students 1st - 3rd Standards
Test scholars' knowledge of addition facts with a festive learning exercise that makes adding a two-person game. Pairs examine a grid of numbers to locate and color addition facts. Last person to color three squares wins! 
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Activity
Doina Popovici

Soccer Addition and Subtraction

For Students 1st - 2nd Standards
Students compete on two teams practicing adding and subtracting whole numbers. After each correct answer, students attempt to make a goal by kicking a soccer ball.
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Assessment
Illustrative Mathematics

Boys and Girls, Variation 1

For Students 1st Standards
Given a certain amount of boys and certain amount of girls, how many children are there total in the class? Assess learners' ability to use addition and subtraction strategies when solving word problems.
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Activity
Education Development Center

Sum of Rational and Irrational is Irrational

For Teachers 8th - 9th Standards
Sometimes the indirect path is best. Scholars determine whether the sum of a rational number and an irrational number is irrational. Reading a transcript of a conversation between classmates leads to an indirect proof of this concept.
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Assessment
Illustrative Mathematics

Comparisons 1

For Students 2nd Standards
A seven question worksheet asks learners to use place value strategies to decide if each number comparison is true or false.
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Activity
Education Development Center

Consecutive Sums

For Students 6th - 7th Standards
Evaluate patterns of numbers through an engaging task. Scholars work collaboratively to determine a general rule reflecting the sum of consecutive positive integers. Multiple patterns emerge as learners explore different arrangements.
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Assessment
Illustrative Mathematics

Maria’s Marbles

For Students 1st Standards
Ali has more marbles than Maria in some of these word problems, while in others Maria has more marbles than Ali. First graders are tasked to read each word problem and solve how many marbles each girl has.
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Assessment
Illustrative Mathematics

How Many Days Until Summer Vacation?

For Students 2nd Standards
On the 124th day of school, young mathematicians are asked to find out how many days are left in the 180-day school year. The teacher version to the task offers several ways the problem can be solved, and can be used to guide instruction...
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Lesson Plan
EngageNY

Writing and Evaluating Expressions—Addition and Subtraction

For Teachers 6th Standards
Let Y represent Yes to using an excellent resource. Pupils first learn to define variables using a complete description in the 19th part in a series of 36. They write expressions involving addition and subtraction in real-world contexts...
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Assessment
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California Education Partners

Least and Greatest

For Students 7th Standards
Squares can be magic. Pupils use their knowledge of addition of positive and negative rational numbers to create a 3 X 3 magic square where the sums are 1. Scholars create addition and multiplication expressions with a set of rational...
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Interactive
Funbrain

Math Baseball

For Students K - 5th Standards
Hey batter, batter, swing! Reinforce math concepts with a baseball-themed interactive. Scholars add, subtract, multiply, and divide numbers with an interactive math resource. Custom-tailored to their proficiency level, the activity is...
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Lesson Plan
EngageNY

Substituting to Evaluate Addition and Subtraction Expressions

For Teachers 6th Standards
Substitute this resource for what you used to use. Learners identify patterns in data tables and write addition and subtraction expressions to represent relationships. Substitution allows them to solve problems in context in the 20th...
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Organizer
Curriculum Corner

Second Grade Summer Math Practice Book

For Students 1st - 3rd Standards
Stop the summer lag with a set of second grade Common Core based math practice sheets. Learners fill in hundreds charts with missing numbers up to 1,000. They practice writing numbers in standard, expanded, and word form. Children also...
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Lesson Plan
EngageNY

The Relationship of Multiplication and Addition

For Teachers 6th Standards
You know 4 + 4 + 4 = 3(4), but what about x + x + x? Pairs work together to develop equivalent expressions relating multiplication and addition in the third activity of a 36-part series. They extend their knowledge of multiplication as...
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Lesson Plan
EngageNY

The Relationship of Addition and Subtraction

For Teachers 6th Standards
Add an outstanding resource to your repertoire. The first installment of a 36-part module looks at the relationship between addition and subtraction through an activity using tape diagrams. Pupils develop the identities w – x + x = w and...
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Learning
Curriculum Corner

Bugs and Flowers Math and Literacy Centers

For Students K - 1st Standards
The sun shines, flowers bloom, and bugs fly—it must be Spring! Add a cheerful theme of bugs and flowers to math and literacy centers. Scholars take part in an assortment of activities designed to reinforce concepts such as identifying...