Curated OER
Adding and Subtracting Polynomials
For use with a TI-nspire calculator, this instructional activity focuses on adding and subtracting polynomials. Learners use calculator to add and subtract polynomials using both the vertical method horizontal methods. A class discussion...
Virginia Department of Education 
Adding and Subtracting Fractions
Your learners will enjoy playing a game as a motivator to learning and remembering the adding and subtracting of fractions.
Curated OER
Adding and Subtracting Decimals With Excel
What a great way to have pupils apply classroom learning to real-world skills! They complete problems involving the addition and subtraction of decimals related to banking-type questions, and then use a spreadsheet to display their results.
Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Springfield Public Schools District 186
Adding and Subtracting Fractions with Unlike Denominators
Fractions are your learners' best friend in this simple instructional activity that has room to show work as learners practice adding and subtracting fractions with unlike denominators.
Math Drills
Adding and Subtracting Mixed Fractions (B)
Grab your stopwatch...ready, set, go! Time youngsters as they solve the addition and subtraction of mixed fractions. There are 12 problems provided, all of which have common denominators. An excellent practice!
Curated OER
Adding and Subtracting Fractions
Fifth graders put their fraction knowledge to work by reading word problems and deciding whether to add or subtract the given fractions. Terms such as combined, total, difference, and left indicate which operation to use.
University of Minnesota
Fraction Operations and Initial Decimal Ideas
Add another strategy to the toolboxes of young mathematicians with this elementary math lesson on using number lines to add and subtract fractions.
Curated OER
Later and Earlier
In this time worksheet, students study 20 different clocks. Students write the time each clock shows now, the time it would show 25 minutes later, the time it would have shown 55 minutes earlier, and the time it would show 2 hours 35...
Curated OER
Math in English Skills I Exercise Book: Addition and Subtraction
Whether your pupils need extra help or they simply need to practice their basic computation skills, this packet will do the trick. It includes a written rationale, answer key, and over 10 pages of double-digit addition and subtraction...
Curated OER
Adding and Subtracting Fractions
In this adding and subtracting fractions worksheet, students solve 5 sets of problems related to the adding and subtracting of fractions. First, they identify that each fraction has a common denominator and then simplify by adding or...
Mathed Up!
Addition and Subtraction
After watching a brief video on addition and subtraction, young mathematicians are put to the test. Including 12 problems, individuals solve word problems to find the least number, total amount, and difference of numbers. 
EngageNY
Relationships Between Quantities and Reasoning with Equations and Their Graphs
Graphing all kinds of situations in one and two variables is the focus of this detailed unit of daily lessons, teaching notes, and assessments. Learners start with piece-wise functions and work their way through setting up and solving...
Houghton Mifflin Harcourt
Add and Subtract Fractions with Unlike Denominators
Follow the Jones family on their summer vacation by adding and subtracting fractions with unlike denonminators. Pupils compute how much luggage space is filled, how much chicken is eaten, and what distances are covered both by car and on...
Houghton Mifflin Harcourt
Add and Subtract Fractions with Unlike Denominators
Once your math class has mastered the skill of adding and subtracting fractions with uncommon denominators, let them apply it to real-life problems. Six scenarios are presented for them to solve, all involving pizza! A tasty test for...
Mathed Up!
Fractions: Adding, Subtracting, Multiplying, and Dividing
Add, subtract, multiply, and divide fractions with a worksheet designed to give your learners practice performing fraction operations. 
Curated OER
Addition and Subtraction of Fractions
Students demonstrate how to solve addition and subtraction of fractions. In this fractions lesson, students use folded paper to shade in fractional parts and identify the sum of the parts shaded.
EngageNY
Scientific Notation
Young mathematicians learn how scientific notation is meant to save time. Part 10, out of a series of 15, asks scholars to recognize the correct use of scientific notation and finish by adding and subtracting numbers using...
Willow Tree
Arithmetic and Geometric Sequences
Old mathematicians never die; they just lose some of their functions. Studying sequences gives scholars an opportunity to use a new notation. Learners write functions to model arithmetic and geometric sequences and use them to find new...
Del Mar College
Exponential and Radical Rules
So many rules and so little time. Make it easy and provide all the exponent and radical rules in one place as an easy reference guide. All of the properties come with several examples to show how the rules apply to different problems. 
DK Publishing
Real-Life Problems, Large Numbers
Do your fourth graders have a hard time showing their work when solving word problems? This helpful worksheet provides two separate spaces for students to show their work and to fill in the answer. The first problem is solved for them as...
West Contra Costa Unified School District
Simplify Expressions and Solve Equations Using Two-Column Proofs
Increase understanding of the algebraic properties and their importance. Scholars justify their steps as they simplify expressions and solve equations. They formalize their work as two-column proof.
Curated OER
The Ants Go Marching
Integrate art, math, life science, music, and fun in this beginning addition and subtraction activity. Children kinesthetically represent adding and subtracting numbers to 10; they stand up one at a time as you count forward and sit down...
Curated OER
Interesting Integers
Students add and subtract integers. In this algebra lesson, students analyze integers using hands on manipulative. They solve problems of addition and subtractions using their signs correctly. They play a game of cards to reinforce the...
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
