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Lesson Plan
University of Texas

Inside Mathematics: Peanuts and Ducks [Pdf]

For Teachers 1st - 3rd Standards
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction. A student must be fluent with addition and subtraction within 100 and understand the relationship between addition and...
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Lesson Plan
University of Texas

Inside Mathematics: Incredible Equations [Pdf]

For Teachers 1st - 3rd Standards
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.
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Unit Plan
Saddleback College

Algebra2go: Subtraction Using an Abacus Problem Sets

For Students 1st - 8th Standards
This resource has three problem sets to practice subtraction using Abacus worksheet. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions,...
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Interactive
Scholastic

Scholastic: Math Facts

For Students 3rd - 5th
This one page website from Scholastic offers two math facts games and a secret code idea all to help you remember your math facts.
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Activity
Other

Elementary Math Worksheets

For Students 3rd - 5th Standards
Print out different math practice sheets on the same topic as needed. A variety of practice sheets in the areas of addition, subtraction, multiplication and division are available.
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Lesson Plan
Better Lesson

Better Lesson: Solving Subtraction Number Stories in Space

For Teachers K Standards
Students will be able to solve subtraction word problems using objects.
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Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Fact Family House [Pdf]

For Students 1st - 3rd
Roll dice and place the numbers rolled in the fact family house, then solve the addition or subtraction problem.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Fact Families

For Teachers 1st - 2nd Standards
As a whole class, the teacher presents students with 3 numbers on cards, such as 5, 8, and 3. The teacher asks the students to find all the ways the numbers can be put together in addition or subtraction sentences. This lesson includes...
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Lesson Plan
Better Lesson

Better Lesson: Smoothing Out Subtraction

For Teachers 2nd
Second graders demonstrate comfort with addition, but show less ease with subtraction. Repeated practice with subtraction is necessary to build fluency.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Fact Families Numbers to 1000

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence when adding and subtracting 3-digit numbers by using fact families.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Fact Families Numbers to 100

For Students 1st - 3rd Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence by using fact families.
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Activity
University of Cambridge

University of Cambridge: Nrich: 2, 4, 6, 8

For Students Pre-K - 1st Standards
On this one page website sharpen your logic, addition, and subtraction skills while working on this challenge. The solution is available to double check your solution.
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Activity
Education.com

Education.com: Jelly Bean Subtraction

For Teachers Pre-K
[Free Registration/Login Required] This picture-perfect picnic is all set for some subtraction practice! Count up the jelly beans to find out how many got eaten. This picture problem is a great first step to helping your child understand...
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Activity
Scholastic

Scholastic: Math Maven's Mysteries: The Cuckoo Caper

For Students 3rd - 8th
The famous Clockenheimer Cuckoo is missing from Clockenheimer Clocks on Main Street! Help Math Maven get it back by solving a math riddle.
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Professional Doc
Books in the Classroom

Carol Hurst's Children's Literature Site: Computation and Picture Books

For Teachers Pre-K - 1st Standards
This sample chapter from Hurst's book Picturing Math is an excellent resource for using picture books and activities for learning computation.
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Activity
Math Cats

Math Cat: Fact Family Card

For Students Pre-K - 1st
Everything you need to know about fact families can be found here. Discover what fact families are and learn different strategies for using them. Links included to print your own fact family cards, create a fact family house, and play a...
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Interactive
ABCya

Ab Cya: Math Match: Kids Practice Addition, Subtraction, Multiplication, Division

For Students 1st - 3rd
Brush up on your math facts playing this matching game. Teachers, this game works well on a SMART Board, too.
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Whiteboard
SMART Technologies

Smart: Colorful Painter Fact Families

For Teachers 1st - 3rd
Find the missing numbers in the fact family number sentences.
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Unknown Type
Varsity Tutors

Varsity Tutors: Aplusmath: Decimal Subtraction Worksheets

For Students 4th - 8th
Create customized decimal subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can...
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Interactive
Other

Crick Primary School: Mathematical Puzzles

For Students Pre-K - 1st
The resource consists of 378,028 math puzzles available in three different levels. Students use multiplication, division, addition, and subtraction skills to solve the puzzles. The puzzles can be solved online or downloaded as a PDF file.
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Article
DOGO Media

Dogo News: "Mad Minute" Tests Could Make You a Math Whiz

For Students 3rd - 8th Standards
How well do you know your addition and subtraction facts and multiplication tables? In this article you'll learn what brain studies show about the value of memorizing and using such fact sets.
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Lesson Plan
Better Lesson

Better Lesson: We Are All a Happy Fact Family

For Teachers 2nd Standards
Explore the relationship between addition and subtraction with this activity. Help students understand that "every subtraction fact has a related addition number sentence, and every addition fact has a related subtraction number...
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Lesson Plan
PBS

Pbs Kids Afterschool Adventure!: Operation: Adding Up, Taking Away Activity Plan

For Teachers 1st - 3rd
In this week's Afterschool Adventure, children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter...
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Activity
Teaching Treasures Publications

Teaching Treasures: Year One Math (Page 4)

For Students Pre-K - 1st
The focus of this interactive worksheet is basic addition and subtraction facts. Use this worksheet for a quick review or short assessment. Immediate feedback is provided.