Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: XYZ Tiles

For Students 8th - 10th Standards
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
Worksheet
Curated OER

Unknown Numbers in Sums and Differences

For Students 1st - 2nd
Beginners to addition and subtraction will have fun with these three word problems, which have accompanying visuals. They complete one problem with a missing difference, one with a missing sum, and a third with a missing subtrahend....
Worksheet
Curated OER

Match the Sums and Differences Worksheet

For Students 1st - 2nd
Because these eight addition and subtraction equations are written horizontally, learners will need to either re-write them or use mental math to solve them. Depending on your objectives, either would be a fine use of this worksheet....
Worksheet
Curated OER

Write and Solve Equations

For Students 6th - 7th
Here is a problem solving worksheet in which learners read six story problems. They write an equation and then solve the problem. Basic addition and subtraction will be used.
Worksheet
Curated OER

Addition and Subtraction with Counters

For Students 1st - 3rd
In this addition and subtraction practice worksheet, students use the counting blocks to help them solve 12 problems that require them to add and subtract with 1 and 2 digit numbers.
Lesson Plan
Curated OER

Native American Pebble and Pot Game

For Teachers Pre-K - 1st
Young scholars participate in a game using 12 manipulatives.  In this addition and subtraction lesson students play a game originated by the Native Americans and  look at a number of items and calculate how many are...
Worksheet
Curated OER

Algebra: Addition and Subtraction Equations

For Students 5th - 6th
In this algebra worksheet, students solve 6 problems in which students use the sample model to write equations. Students write the equation in words, replace the words with values from the model. and solve the equation.
Worksheet
Curated OER

Addition and Subtraction Mix--Level 2 Mix

For Students 2nd
Simple addition and subtraction is the focus of this worksheet which has students solve 100 addition problems and 100 subtraction problems involving single and double digit numbers.
Worksheet
Curated OER

Addition and Subtraction Mix--Level 3 Mix

For Students 3rd
Simple addition and subtraction is the focus of this worksheet which has students solve 100 addition problems and 100 subtraction problems involving single and double digit numbers.
Worksheet
Curated OER

Addition and Subtraction Mix--Level 1 Mix

For Students 1st
Simple addition and subtraction is the focus of this worksheet which has students solve 100 addition problems and 100 subtraction problems involving single and double digit numbers.
PPT
Suffolk Public Schools

Solving Word Problems

For Teachers 1st - 2nd Standards
Lower young mathematicians' affective filter with a problem solving presentation that details four steps to make word problems appear less daunting. 
Worksheet
DK Publishing

Real-Life Problems: Distance, Length, and More

For Teachers 4th - 5th Standards
Math just got real! Scholars solve seven word problems dealing with life applications for multiplication, division, and subtraction.  They show their work in a designated space, and must include units in their answers. Learners will...
Interactive
CK-12 Foundation

Addition and Multiplication Properties with Real Numbers: The Secret of Subtraction

For Students 6th - 8th Standards
An interactive boosts mathematicians' knowledge of subtracting integers using a horizontal number line by way of multiple-choice, true or false, and discussion questions. 
App
1
1
THUP Games

Monkey Math School Sunshine

For Students Pre-K - 1st Standards
Hang out at the beach and listen to some relaxing tunes, all while developing basic math skills. An endless source of fun and learning for young children!
Interactive
Scholastic

Study Jams! Addition & Subtraction of Decimals

For Students 4th - 6th Standards
So current with preteens is the topic of downloading tunes into their computers! In a relatable lesson, viewers are taught to figure out if Zoe can afford to purchase two songs if she has $3.00 left to her credit. Mia talks them through...
Worksheet
Curated OER

Addition and Subtraction Snack Search

For Students 1st - 2nd
In this math maze worksheet, students help the animals find their snack by circling the correctly solved addition and subtraction problems. Students then connect the circles to create a path to the animals snack.
Worksheet
Curated OER

Addition and Subtraction

For Students 2nd - 3rd
In this addition and subtraction worksheet, students analyze a math sentence such as: 16+2 = 12-6. Students solve the problems on each side of the equal sign, and mark "true" if the answers are the same and "false" if they are different....
Worksheet
Curated OER

The Case of the Missing Numbers

For Students 1st - 3rd
In this finding the unknown numbers worksheet, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
Lesson Plan
Curated OER

Codebreaker Math

For Teachers 2nd - 3rd
Young scholars solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages...
Lesson Plan
Curated OER

Estimate, Solve, and Check

For Teachers 1st - 2nd
Young scholars estimate, solve, and check a series of addition and subtraction number and word problems. They write their estimates on a recording sheet, compute and write the answer in the next column, and check their answer with a...
Lesson Plan
Curated OER

Patterns Here, There and Everywhere

For Teachers K - 2nd
Pattern recognition is a skill often used in mathematics. Learners count and sort manipulatives, organize the data into a graph and answer questions about the information displayed. They collect the objects to be used and create patterns...
Lesson Plan
Illustrative Mathematics

Kiri's Mathematics Match Game

For Teachers K - 2nd Standards
Learning math is so much more fun when it involves playing games. Following the rules of the classic game Memory, young mathematicians flip over two cards at a time as they look for numbers whose sum or difference is equal to the value...
Printables
Curated OER

Caterpillar Math Game

For Teachers 1st - 3rd Standards
Invite your youngsters to practice addition and subtraction by playing this game. Kids must determine the answer to each math problem and place that problem on the segment of the caterpillar that holds the answer.
Assessment
Concord Consortium

The Trouble with Tables

For Students 2nd - 5th Standards
Tackle these tables. A performance task has learners complete two puzzles using addition and subtraction. They must fill in tables with missing addends, sums, minuends, subtrahends, or differences.