K12 Reader
Sum Difference
If you need a way to address math and reading in one lesson, look no further than a passage about inverse operations, complete with reading comprehension questions. Kids focus on context clues to determine the meanings of unfamiliar words.
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
Adding & Subtracting (Combining) Integers
Maintain a positive atmosphere in your math class with this fun lesson on adding and subtracting integers. After first explaining the rules for combining positive and negative numbers, this resource uses a comic strip to guide students...
National Security Agency
Integers: Quick, Fun and Easy To Learn
A good complement to any integers unit contains a three-day lesson plan about positive and negative integers, adding and subtracting integers, and how to find the additive inverse. Additionally, it provides all necessary worksheets and...
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 definitions...
Curated OER
Feature column: Hands on Math With Technology
Young learners will view a math adventures video and practice math concepts. Afterwards they will navigate through Internet sites to participate in teacher selected math adventures. This guide walks you through integrating technology...
Little 10 Robot
Operation Math Code Squad
Your mission, if you decide to accept it, is math skills practice. In this app, Mission Impossible meets basic number operation skills, and your students are the secret agents.
Curated OER
Fairy Tale Math
Have class members rewrite a favorite fairy tale in order to incorporate numerical information. For inspiration, the teacher provides an example written by another second grader. These modified stories are then used to write word...
Curated OER
The SummerSchoolMath Worksheet- Addition, Subtraction, Multiplication and Division Level 4
In this math operations activity, learners review their addition, subtraction, multiplication, and division skills as they complete 400 problems.
Curated OER
Addition Subtraction
In this sum and difference worksheet, students find the sum and difference of one digit numbers in word form and in number form. Students complete 11 problems total.
Curated OER
Three-Digit Addition and Subtraction (Q)
In this three digit addition and subtraction worksheet, students add and subtract three digit numbers. Students complete 49 addition and subtraction problems where they are to focus on 3 digit numbers.
Curated OER
Inverse Relationship Between Addition and Subtraction
Elementary schoolers review their knowledge of addition and subtraction through studying fact families. They use cubes to help them add or subtract. Students answer the teachers question with addition and subtraction fact answers.
Curated OER
Online Math Facts Games
Pupils use online games to reinforce math-facts knowledge, engage in a game the way they might be engaged in an arcade game, and try to be one of the class's top-scorers each week. A good filler or extension activity.
Curated OER
Early Mental Math: Practice
Pupils start from a given number and count forward by 1s, 2s, and 10s. They "make ten" in 4 addition problems, and add or subtract 2 in the rest. Finally, they circle the odd numbers in a list from 1-14.
Curated OER
Two-Digit Addition
In need of a few good problems for the class to solve every morning? Each of the eight slides contain six double-digit addition problems which would be perfect as a morning math warm-up, skills and drills practice, or to be completed as...
Curated OER
Non Calculator Math Quiz
Here is a quiz which does not allow calculators. Kids solve a variety of problems that range from addition and subtraction of decimal numbers to probability and perimeter. There are 24 problems to solve. As stated on the resource, this...
Curated OER
Two Digit Addition With No Regrouping Worksheet #7
There is no need to regroup to complete this set of 20 addition problems. Learners will add two-digit numbers togther each sum.
Curated OER
Math Review for Grade 2 (2.6)
For this math review for grade 2 (2.6) worksheet, 2nd graders answer 25 multiple choice questions in standardized test format about addition, subtraction and bar graphs.
Curated OER
Half Math Quilt
Help your third graders become familiar with equivalent fractions for one-half by having them create a quilt. They will use triangles to create a quilt of equivalent fractions over a period of 6 days. As they create the quilt pieces they...
Curated OER
Place Value, Addition, and Subtraction
In these math review worksheets, students complete several addition, subtraction, and place value problems. Students complete 17 problems.
Curated OER
Addition Subtraction 2
In this sum and difference activity, students find the sum and differences of equations with whole numbers and variables. Students complete 6 equations.
Curated OER
Addition and Subtraction Facts to 20
Fact families, and the relationship between addition and subtraction are the foucs of this lesson. Learners explore strategies to help with their addition and subtraction facts. They use doubles, related facts, and fact families to help...
Houghton Mifflin Harcourt
Addition and Subtraction Facts to 20
First graders act out number stories from number cards. In order to learn about addition and subtraction up to 20 lesson, learners become the manipulatives and line up to show the number stories.
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...