Worksheet
Curated OER

Fact Families

For Students 1st - 2nd
With a few extra numbers, these fact families would be complete! After looking at an example, scholars write in the sums and differences for six equations as part of three different fact families. This is really for beginners to this...
Lesson Plan
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Curated OER

Find A System

For Teachers 9th - 12th Standards
Learners must think critically about the graphical and algebraic forms of a system of linear equations in order to come up with their own system when given a point that is the solution to the system.
Worksheet
Curated OER

Subtracting Decimals #2

For Students 4th - 5th Standards
Subtraction is more fun when there's money involved! Fourth graders subtract amounts of money and units of measurement in sixteen vertical and horizontal problems. The last two problems are word problems, helping your kids practice...
Lesson Plan
Illustrative Mathematics

DVD Profits, Variation 1

For Teachers 7th - 9th Standards
The idea in the resource is to understand the connections between proportional relationships, lines, and linear equations. To stay within the context of the standard, skip the part of the resource that solves with unit rates. Instead,...
PPT
Curated OER

Subtraction Problems

For Teachers 4th
In need of a complete and thorough presentation that shows reviews and implements problem solving? Four basic problem-solving steps are outlined, and a complex word problem involving subtraction is presented and used to demonstrate the...
Lesson Plan
Illustrative Mathematics

Many Ways to Do Addition

For Teachers Pre-K - 1st Standards
A great aspect of teaching math is that children have the freedom to solve problems using a variety of different strategies. The focus of this lesson is for young mathematicians to become aware of many ways of answering addition...
Printables
SEN Teacher

Arithmetic Maker

For Teachers K - 6th Standards
With endless possibilities, you can create custom flashcards to take to class as easy as 1, 2, 3! Let this flashcard creator do the work for you, just chose the level of difficulty, add or subtract, and the number of place values. Each...
Worksheet
Curated OER

St. Patrick's Day Missing Digits (J)

For Students 3rd - 5th
In this St. Patrick's Day missing digits worksheet, pupils figure out the missing numbers in twenty-two addition, subtraction and multiplication equations.
Worksheet
Curated OER

Integers - Objects Model

For Students 6th - 7th
Sixth and seventh graders solve 19 various types of problems related to integers as objects models. They write an integer that corresponds to each letter on a number line and then, arrange the integers from least to greatest. Pupils also...
Lesson Plan
Curated OER

Roman Bernardo: Solving Linear Equations

For Teachers 7th - 9th Standards
Mathematicians use an inquiry method to solve linear equations. In this linear equations lesson, students practice solving equations using addition, subtraction, multiplication and division. They solve multi-step equations and equations...
Lesson Plan
Curated OER

Goldfish Addition and Subtraction

For Teachers K
Engage in a hands-on addition and subtraction activity that is a wonderful tie-in with ocean studies. As the teacher, you will make up equations using construction paper and goldfish crackers.
Lesson Plan
Curated OER

Ten Sly Piranhas: Subtraction with Goldfish Crackers

For Teachers K - 2nd
Class members listen to the William Wise book Ten Sly Piranhas and act out the story with one child playing the piranha. They use goldfish crackers (eating them to show subtraction) to demonstrate and understand equations they see...
Lesson Plan
Curated OER

Developing Strategies for Addition and Subtraction

For Teachers 2nd - 4th
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
Lesson Plan
Curated OER

Problem Solvers

For Teachers 5th - 6th
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
Worksheet
Maths Blog

Understand Subtraction - Take Whole Tens

For Students K - 1st Standards
Use a number line to demonstrate subtracting by tens. Learners "hop" backwards down a tens number line to complete subtraction equations. Several different ways to express the operation are included. 
Worksheet
DK Publishing

Real-Life Word Problems

For Students 1st - 3rd Standards
Prepare your second graders for word problems with a straightforward review worksheet. Use it after a unit on addition and subtraction up to 100, or after you have worked on money math. A sample word problem prompts young learners to...
Lesson Plan
Illustrative Mathematics

What’s Missing?

For Teachers Pre-K - 1st Standards
Now you see them, now you don't! This fun peek-a-boo activity engages young mathematicians in developing their ability to compose and decompose numbers. After being presented with a series of counters, children close their eyes while the...
Worksheet
Curated OER

Adding and Subtracting from 10

For Students 1st - 2nd
Here is a nicely designed worksheet on adding and taking away from ten. Learners complete the simple problems with the help of a number line that appears at the top of the page. Some of the equations have a missing addend, but do have...
Worksheet
Curated OER

Subtraction Worksheet

For Students 3rd - 4th
In this subtraction puzzle worksheet, students solve six subtraction puzzles by solving for the difference of several equations. There are four subtraction problems for students to solve in each puzzle.
Worksheet
Curated OER

Writing Simple Subtraction Equations

For Students 1st
In this writing simple subtraction equations worksheet, 1st graders look at three animal pictures and write the equation that goes with it.
Interactive
Curated OER

Solving System of Equations by Addition or Subtraction

For Students 9th - 12th
In this online math worksheet, high schoolers solve systems of equations by using addition and subtraction . This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
Interactive
Curated OER

Solving System of Equations by Multiplication and then Addition or Subtraction

For Students 9th - 12th
In this online math worksheet, high schoolers solve equations to determine the value of "x" and "y." This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific...
Worksheet
Curated OER

Equations by 1 through 10

For Students 2nd - 3rd
In this missing addend worksheet, students fill in the missing addend to the addition and subtraction problems. Students fill in the missing addends for numbers 1 through 10 for 100 problems.
Worksheet
Curated OER

Horizontal Mixed Addition and Subtraction Using Numbers Between 1 and 100: Part 2

For Students 1st - 2nd
In this online interactive math worksheet, learners complete the equations by adding or subtracting using the number one hundred. Students may access the correct answers and their scores by clicking submit.