Worksheet
Curated OER

Addition: three numbers

For Students 2nd - 3rd
In this addition worksheet, students add three numbers together. Students complete 40 problems where each number is one or two digits.
Worksheet
Curated OER

Addition: 2 digit numbers

For Students 2nd
In this addition worksheet, 2nd graders add two digit numbers together with and without regrouping. Students complete 40 problems.
Worksheet
Curated OER

Fractions: Adding Mixed Numbers

For Students 3rd - 5th
In this adding fractions practice worksheet, students solve 5 problems that require them to add fractions that are mixed numbers.
Worksheet
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Adding and Subtracting Like Mixed Numbers (7)

For Students 5th
For this mixed number fractions worksheet, 5th graders add and subtract to solve the mixed number fractions. Students solve 10 fraction equations.
Unit Plan
National Security Agency

Introducing Integers and Their Operations

For Teachers 6th - 8th Standards
There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class...
Worksheet
Curated OER

Negative Magic Squares

For Students 6th - 7th
In this magic squares instructional activity, students solve 3 magic squares using negative numbers or a mixture of positive and negative numbers. The squares contain 9 boxes and the numbers that go in the squares are provided.
Worksheet
Curated OER

Improper Fractions and Mixed Numbers

For Students 6th - 8th
In this improper fraction and mixed number worksheet, students learn how to convert from an improper fraction to a mixed number and from a mixed number to an improper fraction. They practice converting from one to the other.
Lesson Plan
Curated OER

How using number patterns help us add or subtract

For Teachers 2nd
Second graders use a number line to understand multiples.  In this number line lesson, 2nd graders use a floor size number line and calculate problems with multiples. Students complete a worksheet with multiples.
Worksheet
Curated OER

Seven up!

For Students 3rd - 6th
In this number puzzle worksheet, students put numbers in the puzzle so that the numbers across from each other all add up to the center number. Students put numbers one through 7 in the puzzle.
Worksheet
Curated OER

Add 9 to a 2-Digit Number

For Students 2nd - 3rd
In this addition worksheet, students add 9 to a series of 2-digit numbers and increase given numbers by 9. An answer key and website reference are given.
Worksheet
Curated OER

Addition + 8

For Students 1st - 2nd
In this addition worksheet, students add the number 8 to other one digit numbers. Students complete 10 addition problems for 8 + numbers 0 through 9.
Worksheet
Curated OER

Add These Across - Horizontal Addition

For Students K
For this addition worksheet, students find the sums in 6 horizontal addition problems. They count the pictures, write the numbers on the blank lines, and add across the row.
Worksheet
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Adding 3 to a Single Digit

For Students 1st - 2nd
In this adding 3 worksheet, students solve ten problems in which the number three is added to a single digit number. The problems are in horizontal format.
Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 6th - 7th
Middle schoolers use discs in order to add and subtract integers. There are manipulatives present so kinesthetic learners can access the curriculum. They also review the concept of the opposite of positive and negative numbers.
Worksheet
Math Salamanders Ltd.

Place Value to 10,000 - Sheet 1

For Students 2nd - 4th Standards
In this place value instructional activity, students add the numbers in expanded number form for numbers up to 10,000. Students add up numbers for 12 problems.
Worksheet
Curated OER

Fun Math 34 Worksheet

For Students K - 1st
Little learners add single digit numbers up to twelve. This page includes cute clip art and 15 problems to solve. Note: Some problems add up to 11 or 12 and may be better suited for advanced Kindergarteners or 1st graders.
Lesson Plan
Curated OER

Oddball Patterns

For Teachers 5th - 8th
Investigating unique number patterns gets learners to put their thinking caps on. Your whole class examines numerical palindromes that are added and multiplied. The class works to find the pattern.
Lesson Plan
Curated OER

Math Lesson Plan : Finger Counting

For Teachers 1st - 2nd
Create a class of mathematics master. They practice addition to ten until they have mastered the skill. They use their hands to add numbers and eventually find the missing addend to make a sum of 10. They also subtract a single digit...
Worksheet
Curated OER

Counting to 100: Step-by-Step

For Students K - 2nd
Introduce your pupils to the hundreds chart! This pair of worksheets is designed to walk them through the patterns they see in the chart as they count by ones and 10s. They fill in missing numbers on a hundreds chart, using guided steps....
Lesson Plan
Curated OER

Domain: Operations and Algebraic Thinking

For Teachers K - 2nd
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
Worksheet
Curated OER

Counting On In Tens

For Students K - 2nd
How can you start at 13 and end up at 43? By adding 10s of course! Kids complete 4 different number lines by adding 10s. Each line begins with a teen number and is 4 numbers long. An answer key is included.
Worksheet
Curated OER

Addition: Three Addends

For Students 1st - 2nd
Learners add three single-digit addends to find their sums. There are 10 practice problems whose answers range from 0-10. 
Worksheet
Math Salamanders Ltd.

Column Addition - 4 Digits and Multi-Addends

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

Make Ten Guided Lesson

For Students K - 1st
Use these missing-addend problems to help your beginning mathematicians practice addition facts. They read sentences and solve, making 10 from different single-digit numbers. Each of these four problems is formatted differently, so the...

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