Curated OER
Looking Through the Algebraic Lens
Students work with rectangles to find generalizations for adding and subtracting odd and even numbers in part one of the lesson. In part two, students use geoboards to construct polygons, look for patterns, and find a general rule.
Curated OER
Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
Florida Center for Instructional Technology
A Human Number Line: Teacher Notes
Twenty-one pieces of tagboard can lead your class to a greater understanding of integers when you use them to form a human number line. After creating this math tool, two strategies for adding and subtracting will have your...
Curated OER
Adding 1 to a Single Digit
In this adding one worksheet, students solve 10 problems in which the number one is added to a single digit number from 1 to 5.
Curated OER
Word problems involving number relationships
In this Algebra I worksheet, 9th graders solve word problems in one variable that are based on relationships in numbers. The one page worksheet contains thirty problems. Answers are not provided.
Curated OER
Adding
In this addition worksheet, students add together 4 addition math problems with single digit whole numbers. Students write their answers in the boxes provided.
Curated OER
Adding
In this addition worksheet, students solve 4 addition math problems involving singe digit numbers from 2-5. Students write their answers in the boxes provided.
Curated OER
Rational Numbers
In this rational numbers learning exercise, 9th graders solve and complete 16 different problems that include adding and subtracting various rational numbers. First, they determine the sum or difference for each equation. Then, students...
Raytheon
Adding and Subtracting Fractions
In this adding and subtracting fractions learning exercise, students add and subtract fractions including mixed numbers and negatives. Students complete 62 problems.
Curated OER
Study Buddies: Adding Decimals
For this math worksheet, students will work with a coach to add numbers with decimals to the hundredths place. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Piecing it Together: Adding & Subtracting Fractions
Learners add and subtract fractions and mixed numbers with unlike denominators. They "fish" for and solve a number of fraction problems requiring adding, subtracting, finding equivalent fractions, and using mixed numbers.
Curated OER
Extending Online Number Sequences
In this online number sequences worksheet, students work out the answers to eight comprehensive exercises with thirty-eight calculations involving a variety of sequences. Students answers are automatically graded online as they go and...
Curated OER
Addition: Number Bonds to 30
In this addition worksheet, students fill in the missing addend to an addition problem that adds up to 30. This number could be a one or two digit number. Students complete 41 missing addend problems.
Curated OER
Mental Math for Adding Decimals
Fifth graders work in groups to practice adding decimals. For this adding decimals lesson, 5th graders call out different money amounts to each other and mentally add the coins called out. Students take turns calling out and adding the...
Pennsylvania Department of Education
Shapes Around Us
Learners use manipulatives to study shapes. They sort shapes and use correct geometric terminology to describe them. Young scholars find real-life examples of 2 and 3 dimensional shapes, and classify figures in their classroom according...
Curated OER
Exercises: Counting by 10s
You've found six problems sure to help your class understand adding tens and hundreds. First they fill in a chart by adding 10s, then they make 100 in different ways. They then use a hundred chart to complete three different patterns,...
Curated OER
Sequencing and Counting on
This series of slides gives learners an opportunity to count on by 10's in number sequences then discuss how to apply counting on to addition and subtraction problems. Learners count on and back by 1's, 10's, and 100's.
Curated OER
Adding 4 to a Single Digit
In this addition worksheet, learners practice adding the number 4 to 10 single digit whole numbers. Students write their sums in the boxes provided.
Curated OER
Adding 9's (A)
In this addition worksheet, students solve 40 problems in which the number 9 is added to a single digit. This could be used as a timed drill.
Curated OER
Counting on 1, 2, and 3
For this counting one, two and three worksheet, students, working with a partner, practice answering seven word problems and equations.
Curated OER
Building 2-Digit Numbers
In this addition instructional activity, 2nd graders use the building method to find the sums of 2-digit numbers. They find the totals in 6 examples that have three 2-digit addends in each problem.
Curated OER
Add Whole Numbers
In this addition learning exercise, students add three and four digit numbers together. Students complete 96 addition of whole numbers problems.
Math Salamanders Ltd.
Column Addition - 3 Digits Sheet 6
In this addition activity, students complete a set of 12 problems, adding two- and three-digit numbers. Numbers must be arranged vertically and problems completed. A reference website is given for additional activities.
Henrico County Public Schools
Models for Teaching Addition and Subtraction of Integers
Positive and negative numbers are everywhere in the world around us. Whether it's charged particles in atoms, a hot air balloon rising and falling in the sky, or a series of bills and checks being delivered in the mail, this...