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Smithsonian Institution

Lexington and Concord: Historical Interpretation

For Teachers 6th - 8th Standards
Learners view and analyze three different images related to the Battle of Lexington and Concord. They also answer a variety of questions in a graphic organizer to help keep the information straight.
Worksheet
Lane Community College

Review Sheets: Beginning Algebra

For Students 6th - 9th Standards
This jumbo worksheet contains everything you need to get through Pre-Algebra. Begin with simple expressions, and end with linear functions and polygons. There are multiple problems for each topic to make sure those skills are set. 
Lesson Plan
National Wildlife Federation

Wherefore Art Thou, Albedo?

For Teachers 9th - 12th Standards
In the sixth instructional activity in a series of 21, scholars use NASA data to graph and interpret albedo seasonally and over the course of multiple years. This allows learners to compare albedo trends to changes in sea ice with...
Worksheet
Curated OER

Practice Adding Two

For Students 1st
In this practice adding two worksheet, 1st graders solve 320 addition problems, 16 on a page, 20 pages, with answers, by adding 2 to any number from 1-10.
Worksheet
Curated OER

Adding 6 to a Single Digit

For Students 1st - 3rd
In this addition learning exercise, students practice adding the number 6 to a number less than 10. There are 10 addition problems to solve on this learning exercise and the answers are on the second page.
Worksheet
Curated OER

Adding 2 to a Single Digit

For Students 1st - 3rd
In this addition worksheet, students practice adding the number 2 to a number less than 10. There are 10 addition problems to solve on this worksheet and the answers are on the second page.
Worksheet
Curated OER

Add and Subtract Decimal Ten Thousandths (A)

For Students 3rd - 4th
In this mathematics worksheet, learners solve a number of problems by adding and subtracting decimals to the ten thousandths place. There are 32 problems to solve on the sheet.
Worksheet
Curated OER

Adding 8 to a Single Digit

For Students 1st - 3rd
In this addition learning exercise, students practice adding the number 8 to another number that is less than 10. There are 10 addition problems to solve on this learning exercise and the answers are located on the second page.
Worksheet
Curated OER

Adding 7 to a Single Digit

For Students 1st - 3rd
In this addition learning exercise, students practice adding the number 7 to a number less than 10. There are 10 addition problems to solve on this learning exercise and the answers are on the second page.
Worksheet
Curated OER

Adding Three Numbers

For Students 2nd
In this addition worksheet, 2nd graders solve 11 three double-digit number addition math problems by lining up the numbers by tens and ones.
Worksheet
Curated OER

Adding 5 to a Single Digit

For Students 1st - 3rd
In this addition instructional activity, students practice adding the number 5 to a number less than 10. There are 10 addition problems to solve on this instructional activity and the answers are on the second page.
Worksheet
Curated OER

Adding 5 to a Single Digit

For Students 1st - 3rd
In this addition learning exercise, students practice adding the number 5 to a number less than 10. There are 10 addition problems to solve on this learning exercise and the answers are on the second page.
Worksheet
Curated OER

Working With Negative Numbers: Adding and Subtracting with a Number Line

For Students 5th - 6th
For this math worksheet, students practice addition and subtraction of positive and negative numbers using a number line to help. The 30 problems are written as questions in words.
Worksheet
Curated OER

Adding Two- and Three-Digit Numbers

For Students 4th
In this addition activity, 4th graders add together 13 two and three-digit numbers with two and three numbers in each addition math problem.
Worksheet
Curated OER

Ten More, Ten Less

For Students 2nd - 3rd
In this number 10 worksheet, students solve 6 word problems, either adding or subtracting 10. Word problems are "picture problems."
Worksheet
Curated OER

Addition-adding one digit to two digits

For Students 3rd - 5th
In this addition worksheet, students add one digit numbers to two digit numbers. There are thirty problems to answer. Students can complete this worksheet online and submit the answers.
Lesson Plan
Curated OER

Three Bears and Three Goats in the Morning Sun

For Teachers 1st
First graders listen to the story Three Bears from the book, Three Tales of Three, focusing on the one-to-one correspondence while counting various items in the story. They create pages for the number 3 for their counting books.
Worksheet
Curated OER

Adding/Subtracting Integers

For Students 7th - 8th
In this integer instructional activity, students find the sum and difference of positive and negative integers. Each equation contains two to three terms, with multiple operations. Thirty problems are provided, with an answer sheet.
Worksheet
Curated OER

Subtracting From a Multiple of 10

For Students 2nd
In this subtraction activity, 2nd graders are instructed how to subtract two digit numbers from multiples of 10 by counting on. There are two pages with 10 problems on each page.
Lesson Plan
Curated OER

Adding Fractions with Like Denominators

For Teachers 9th - 10th
Students add fractions with the same denominators. In this algebra lesson, students solve fractions with common denominators. There are ten practice problems to get better at this skill.
Worksheet
Curated OER

Adding 4 to a Single Digit

For Students K - 2nd
In this addition learning exercise, students solve 10 math problems in which they add the number 4 to a single digit number. The answers are on the second page.
Worksheet
Curated OER

Adding on Two

For Students 1st - 2nd
In this math worksheet, students practice adding two to a number. Students complete 20 problems written horizontally. Example: 26+2=? Students also practice counting by two with both even and odd number sequences.
PPT
Curated OER

Adding in Our Heads

For Teachers 2nd - 3rd
A good presentation on adding two-digit numbers. Learners are shown how to partition the numbers before trying to add them in their heads. A frog is the featured teacher of the PowerPoint, and he leads viewers through many problems and...
Worksheet
Houghton Mifflin Harcourt

Leveled Problem Solving: Adding and Subtracting Mixed Numbers

For Students 4th - 5th Standards
Using the six word problems provided, learners practice adding and subtracting mixed numbers. They help Jose, Sasha, Juanita, Stephanie, and Carlos to solve their problems!

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