Curated OER
Number Operations
Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. In this number operations instructional activity, students work in groups to create a game for...
Willow Tree
Number Properties
The number of basic algebraic properties can become overwhelming for learners. A lesson plan explains and gives examples for all the basic algebraic properties. The resource is perfect to use as a way for pupils to...
Curated OER
Adding 2-Digit Numbers, part 4
Practice adding it up! A very straightforward worksheet includes 36 addition problems, all with two-digit addends. Great for a timed math drill or a comprehensive review activity.
Curated OER
Adding Bigger Numbers: 2 and 3 Digit Numbers
Challenge your young learners with an addition worksheet, which provides different opportunities to practice adding two and three-digit numbers. The first two sections provide twelve problems for pupils to solve, while the last two...
EngageNY
Adding and Subtracting Rational Expressions
There's a fine line between a numerator and a denominator! Learners find common denominators in order to add and subtract rational expressions. Examples include addition, subtraction, and complex fractions.
Curated OER
Rule It Out
Here's a way to create math fact flash cards! Learners create their own cards and sort them into matching categories. Students start with addition and work their way up to harder math such as multiplication, and are asked to notice...
Curated OER
Practice Adding
Challenge your first graders with 24 addition problems. The first section of problems use numbers from 5 to 64, while the second section contains problems adding three numbers together. The last few problems prompt young mathematicians...
Curated OER
Choose the Operation: Plus or minus (up to 100)
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...
Curated OER
Fact Families
These fact families need to be completed. Scholars use addition and subtraction to complete four number sentences for each set of three numbers. The sentences are all part of the number set's fact family, and demonstrate the commutative...
DK Publishing
Writing Equivalent Number Sentences
Connect the four operations with a series of number sentences. After studying the examples at the top of the page, third graders find ways to write related number sentences for addition, subtraction, multiplication, and division...
Math Worksheets Land
Properties of Operations as Strategies: Step-by-Step Lesson
If you are looking for a visual warm-up on the commutative property, this might be the one. There is just one problem here, and you will need to guide learners through it since the objective isn't clear. They practice the commutative...
Curated OER
NUMB3RS - Season 2 - "Convergence" - Air Hockey
Learn how to use a matrix to organize data to solve a problem. This activity uses wins and losses to rank players for an air hockey tournament they wish to have. After practicing some basic matrix operations the class could do the...
Curated OER
10 More or 10 Less?
Take a rocket to the stars with using a math worksheet. Here, four sets of alien saucers, moons, rockets, and stars prompt young learners to match numbers with one more or ten more. Color the pictures for extra fun when learners are...
Curated OER
Real-Life Problems
Choose your operation; scholars read five math-application word problems and determine which of four operations to use in solving each. They work with time and measurements, making sure to include the proper units in their solutions....
Curated OER
Using Fact Families
In this math worksheet, students write two addition problems and two subtraction problems for each fact family. Students also write in the missing addition or subtraction sign and answer 6 questions about a word problem.
Curated OER
Everyday Problems with Decimals
Review word problems and decimals with a worksheet that features everyday problems for your students to solve. Six problems provide space for both work and the solution, reinforcing the importance of showing one's work in word problems....
Curated OER
Reading Tally Chart
As learners explore data analysis have them practice reading tally charts using these examples. They answer basic questions about each of three charts, employing addition and subtraction skills. For example, a chart tallying t-shirts...
Curated OER
Fact Families PowerPoint
Using an attractive and easy to follow format, this presentation offers an overview of the concept of a fact family. The areas covered include addition, subtraction, multiplication and division. In addition, the slides show...
CK-12 Foundation
Mixed Numbers as Improper Fractions: Pineapple Slices
Practice adding and subtracting improper fractions with pineapple slices. Young mathematicians move whole pineapple slices to visualize the addition of the 2/5s that is on Sally's plate. Pupils also use a combination of mixed numbers and...
CK-12 Foundation
The Real Numbers: Adding Electrons
Get a charge out of a great resource! Scholars use an interactive to explore addition and subtraction of integers. They add or remove electrons in an atom model to consider its charge.
CK-12 Foundation
Vector Sum and Difference: The Country of Dreams
Find your way around using vectors. Scholars use an interactive to learn about vector addition. They answer a set of questions about modeling a route on a map using vectors.
Curated OER
Multiplying With Nine As A Factor
Elementary math minds complete various activities to memorize the multiples of nine. They watch a PowerPoint presentation and demonstrate the finger trick. Unfortunately the link to the multiplication activities does not take you...
EngageNY
A Surprising Boost from Geometry
Working with imaginary numbers — this is where it gets complex! After exploring the graph of complex numbers, learners simplify them using addition, subtraction, and multiplication.
US Department of Energy
Go Far Cars Ramp: A Basic Ramp with Four Height Settings
Precise measurements make the job easier! One of the challenges when using an inclined plane for testing comes from pupils not using exact measurements. They often rely on books that slide or different ramp lengths when experimenting. By...