Worksheet
Curated OER

Complete the Number Sentences

For Students 3rd - 4th
In this addition worksheet, students use three digit addition and solve for missing addends. Students master 15 problems filling in the missing numerals for each.
Worksheet
Math Salamanders Ltd.

Column Addition - 4 Digits Sheet 6

For Students 3rd - 5th Standards
Students complete a set of 12 problems, adding three and four-digit numbers. Problems must be arranged vertically and solved. A reference website is given for additional activities.
Worksheet
Math Salamanders Ltd.

Column Addition - 4 Digits Multi-Addends Sheet 1

For Students 3rd - 4th Standards
For this addition worksheet, students complete a total of 12 problems, adding three and four-digit numbers. A reference website is given for additional activities.
Worksheet
Curated OER

Addition: Number Bonds to 100

For Students 3rd - 5th Standards
For this addition worksheet, students fill in the missing addend for problems that add up to 100. Students complete 41 problems.
Lesson Plan
Ohio Department of Education

Actions with Fractions: Adding and Subtracting Fractions with Common Denominators

For Teachers 3rd - 5th Standards
Fourth graders develop a conceptual understanding of fractions and begin to add and subtract fractions with like denominators. Included is a worksheet to assess readiness and a teacher's checklist showing class understanding at a...
Worksheet
Curated OER

10 More or 10 Less

For Students 1st - 2nd Standards
Practice adding and subtracting 10 with this outer space worksheet. On the top, scholars match digits floating in stars with sums inside a spaceship. Next, they do the same with subtracting 10, connecting numbers to differences. These...
Lesson Plan
Curated OER

Investigation-Reasoning and Proof

For Teachers 2nd - 3rd
The class explores even and odd numbers.They discuss the results when even numbers are added and when odd numbers are added together. Then work in pairs to find other odd and even pattern examples.
Lesson Plan
Curated OER

Operations on Matrices

For Teachers 10th - 12th
A guided instructional activity using the WolframAlpha computer program. The class explores the basic operations of adding, subtracting, multiplying and dividing matrices to solve problems.
Worksheet
Curated OER

Counting In Tens: Crossing the Hundreds Boundary

For Students 2nd - 3rd
Count on by 10 to finish each number line. Pupils count on 10 begins at a variety of three-digit numbers. There are 6 problems to solve.
Lesson Plan
Curated OER

Videobusters

For Teachers 8th - 10th
A real-world scenario, Videobusters, a video rental store has just got to get organized. In small groups, the class works on organizing and analyzing data utilizing matrices. They need to use their skills in adding, subtracting and...
Lesson Plan
Curated OER

Through India and Back

For Teachers 6th - 8th
Learners play a game based on "The Amazing Race" to practice using rates and fractions. In this fractions and rates instructional activity, students work in small groups competing to complete the tasks in the quickest time. At each stage...
Lesson Plan
Curated OER

Solving Simple Addition and Subtraction Equations Using Fact Families

For Teachers 2nd - 4th
Learners explore addition fact families. In this addition and subtraction fact family math instructional activity, students click and drag objects on the Smart Board to create visual representations of fact families. Learners use fact...
Lesson Plan
Curated OER

Bears in a Box

For Teachers 1st
First graders count bears to predict missing addends. They analyze the missing addend sentence: 7 + ? = 10 and count up from 7 to 10 and check to see if there are 3 bears in the box.
Worksheet
Curated OER

Numbers that Add to 3

For Students 1st - 2nd
In this addition facts worksheet, students fill in the graphic organizer to make addition facts that equal the number 3, 4, 5, and 6. Students complete 8 facts for the 4 worksheets.
Worksheet
Curated OER

Thanksgiving Addition

For Students 3rd - 4th
A handy instructional activity on adding 3-digit numbers is here for you. Third graders practice the skills of carrying numbers from one place value to the next when adding numbers like this. An answer key accompanies the instructional...
Lesson Plan
EngageNY

Estimating Digits in a Quotient

For Students 6th Standards
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...
Lesson Plan
Houghton Mifflin Harcourt

Addition and Subtraction Facts to 20

For Teachers K - 2nd Standards
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.
Worksheet
Curated OER

Collections: Word Problems

For Students 2nd - 3rd
Young scholars read multiple step story problems and solve by adding and subtracting. They solve five problems.
Assessment
Noyce Foundation

Ducklings

For Teachers 6th - 7th Standards
The class gets their mean and median all in a row with an assessment task that uses a population of ducklings to work with data displays and measures of central tendency. Pupils create a frequency chart and calculate the mean and median....
Worksheet
Curated OER

Count by 100s

For Students 1st - 2nd
In this counting by hundreds to problem solve worksheet, students count and write by hundreds in sequence, add a hundred, and model using flats and rods to solve six problems.
Lesson Plan
Curated OER

Roman Numeration

For Teachers 5th - 6th
Gain a deeper understanding of the base 10 system through practicing conversion to Roman numerals through one million. The class is taught how to read the numerals through modeling and guided practice. This lesson includes a homework...
Activity
Perkins School for the Blind

Baseball

For Teachers 3rd - 12th
Baseball is an American pastime, super fun to play, and can be made accessible to learners with visual impairments. Instead of taking to the ball field, your class can learn the rules of the game by playing a small three-dimensional...
Worksheet
Curated OER

Addition: 2-Digit plus 2-Digit, No Regrouping

For Students 2nd - 3rd Standards
In this addition worksheet, students complete 30 problems, adding two, 2-digit numbers-no remainders. Worksheet includes links to answers and additional worksheets.
Lesson Plan
Curated OER

Patterns and Sequences

For Teachers 9th
Ninth graders examine sequential number patterns and the Fibonacci sequence. Given number patterns, they determine the next number in a sequence. Students develop their own number patterns and exchange them with another to be solved.