Illustrative Mathematics
Illustrative Mathematics: 4.nf Peaches
This task provides a context where it is appropriate for students to subtract fractions with a common denominator; it could be used for either assessment or instructional purposes. Aligns with 4.NF.B.3.c.
Khan Academy
Khan Academy: One Step Addition & Subtraction Equations: Fractions & Decimals
Practice solving equations in one step by adding or subtracting a number from both sides. These problems involve decimals and fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Khan Academy
Khan Academy: Adding and Subtracting Polynomials Review
Adding and subtracting polynomials is all about combining like terms. In this article, we review some examples and give you a chance for you to practice the skill yourself.
Alabama Learning Exchange
Alex: Subtraction Fun!
The students will be introduced to the concept of subtraction. They will use different manipulatives to practice this concept. The students will also learn to recognize the minus sign.
Better Lesson
Better Lesson: Go Fishing for a Ten
Second graders use a familiar card game to help them build their math fact fluency for facts where the sum is 10.
Better Lesson
Better Lesson: Adding, Subtracting, and Understanding Decimals
Students learn how to properly add and subtract decimal quantities.
Better Lesson
Better Lesson: Adding and Subtracting Integers With Counters
What are opposites and what happens when you add them together? Students work with counters to model adding and subtracting integers.
Better Lesson
Better Lesson: Adding and Subtracting Integers on a Number Line
Sixth graders work with a number line and football to model adding and subtracting integers.
Better Lesson
Better Lesson: Adding and Subtracting Decimals
Sixth graders use estimates and work on strategies for adding and subtracting decimals.
Better Lesson
Better Lesson: Applying the Basics!
Using base-ten materials and place-value skills, 2nd graders gain a better understanding of how to add and subtract numbers.
Better Lesson
Better Lesson: Put It Together and Take It Apart
Second graders increase their understanding of place value by manipulating larger numbers.
Better Lesson
Better Lesson: Put Together or Take Away?
First graders learn the basics of 1.OA.1 by mixing addition and subtraction word problems from day 1. The focus question is: Put together or take away?
National Council of Teachers of Mathematics
Nctm: Illuminations: Grouping and Grazing
Help the alien spaceship move cows into corrals by counting, adding, and subtracting. This activity helps children learn grouping, tally marks, and place value.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide Addition, Subtraction Within 1000 With Word Problems to 100
A guide to support parents as they work with their students in addition and subtraction within 1000 with word problems to 100.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Sums and Differences to 20
A guide to support parents as they work with their students in sums and differences to 20.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Number Pairs, Addition and Subtraction to 10
A guide to support parents as they work with their students in number pairs, addition and subtraction to 10.
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Rational Expressions
Learn how to add and subtract rational expressions.
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Rational Expressions
This lesson covers adding and subtracting rational expressions when the denominators are the same.
E-learning for Kids
E Learning for Kids: Math: Pizza (Italian) Restaurant: Subtraction
In this interactive site students get to practice with various math skills in a real life scenario. Those skills include basic subtraction facts using materials, matching number sentences to pictorial representations, and writing number...
E-learning for Kids
E Learning for Kids: Math: Llama Farm: Subtraction
On this interactive site students learn to use subtraction to solve problems in real-life situations.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtraction Facts: Subtract Up to 6
Learners subtract numbers up to six. If the correct answer is chosen, the face smiles.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtraction Facts: Subtract Up to 7
Learners subtract numbers up to seven. If the correct answer is chosen, the face smiles.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtraction Facts: Subtract Up to 8
Learners subtract numbers up to eight. If the correct answer is chosen, the face smiles.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtraction Facts: Subtract Up to 9
Students practice subtracting numbers up to nine. If the correct answer is chosen, the face smiles.