Interactive
CK-12 Foundation

Properties of Real Number Addition: The Secret of Subtraction

For Students 6th - 8th Standards
Learners sometimes struggle to understand the concept of adding and subtracting integers. Help them see the why behind their answers using the interactive number line. The values change as individuals adjust the number line for each new...
Lesson Plan
Curated OER

Telling Time - Online Games

For Teachers 1st - 5th
A variety of resources are included here that will help your young learners tell time using either an analog or digital clock. The first resource listed, called "Teach Clock" is amazing! You can add or subtract time. Post it on your...
Worksheet
DK Publishing

Money Word Problems #2

For Students 2nd - 4th Standards
Are you experiencing money problems? Here are some more! Young mathematicians practice their addition and subtraction skills with money values in these word problems and number sentences. Some of the 25 questions prompt scholars to...
Worksheet
Curated OER

Collections: Word Problems

For Students 2nd - 3rd
Young scholars read multiple step story problems and solve by adding and subtracting. They solve five problems.
Lesson Plan
Curated OER

Learn to Earn When you Tend to Spend

For Teachers 2nd - 3rd
Analyzing and understanding word problems is extremely important. Pupils learn that in money problems, earn usually means you add and spend usually means you subtract. They will solve a series of money-related word problems, label coins,...
Worksheet
DK Publishing

Money Word Problems #3

For Students 2nd - 3rd Standards
Money is an excellent way to help young mathematicians practice adding and subtracting numbers with decimals. They solve 15 word problems representing a variety of scenarios for calculating money. For some, scholars determine which bills...
Worksheet
DK Publishing

Real-Life Word Problems

For Students 1st - 3rd Standards
Prepare your second graders for word problems with a straightforward review worksheet. Use it after a unit on addition and subtraction up to 100, or after you have worked on money math. A sample word problem prompts young learners to...
Worksheet
Curated OER

Add Groups of Ten

For Students 2nd - 3rd
In this addition instructional activity, students add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Worksheet
Curated OER

Mental Maths

For Teachers 2nd - 4th
In this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
Worksheet
Curated OER

Evaluating Expressions

For Students 9th - 10th
In this algebra activity, students evaluate problems using the substitution method. They multiply, divide, add and subtract after replacing the variables with numbers. There are 26 problems with an answer key.
Lesson Plan
Curated OER

Egyptian Computation

For Teachers 7th - 9th
In this Egyptian computation worksheet, young scholars add and subtract Egyptian numerals.  They convert Egyptian numerals into our standard number system.  This one-page worksheet contains 8 problems.
Worksheet
Curated OER

Math B Regents Questions by Performance Indicator: Rational Numbers

For Students 9th - 11th
In this rational number activity, learners add and subtract quantities containing radical expressions.  They identify equivalent expressions.  This three-page activity contains 15 multiple-choice problems.  Answers are...
Worksheet
Curated OER

Easy Worksheet: Adding Radical Expressions

For Students 9th - 12th
For this adding radical expressions worksheet, high schoolers solve 18 short answer problems. Students add and subtract radical expressions with different radicands.
Worksheet
Curated OER

Unit 15 Negative Numbers

For Students 6th - 8th
In this negative numbers worksheet, students add and subtract positive and negative numbers.  They find the terms in a sequence, complete multiplication numbers, and find the missing numbers in given multiplication problems. ...
Worksheet
Houghton Mifflin Harcourt

Ten More, Ten Less

For Students 1st - 2nd Standards
Six story problems needing answers await your class. Pictures provide some scaffolding, but consider also using unit cubes and 10-rods to compose and solve equations for each. Some of the problems require a two-step processes to solve. A...
Activity
1
1
Kelly's Kindergarten

May Daily Activities

For Students K - 2nd Standards
Five weeks of daily activities for the month of May! With a new activity for each day of the month, your youngsters will utilize a variety of skills and practice everything from sight words and spelling to counting by twos or coloring...
Worksheet
Curated OER

Positive and Negative Activity

For Students 5th - 7th Standards
In this positive and negative worksheet, students use the positive and negative rules to rewrite and answer the 34 questions below, an example is provided for them.
Worksheet
Curated OER

Subtracting From a Multiple of 10

For Students 2nd
In this subtraction activity, 2nd graders are instructed how to subtract two digit numbers from multiples of 10 by counting on. There are two pages with 10 problems on each page.
Lesson Plan
Curated OER

Buggin' Out (Identifying and Adding Amounts of Money)

For Teachers 2nd - 3rd
Young scholars explore consumer math by participating in estimate exercises. In this currency lesson, students identify and define each piece of U.S. currency and their value to the monetary system. Young scholars complete several money...
Lesson Plan
Curated OER

A Borrower And A Lender Be

For Teachers 2nd
Second graders practice addition and subtraction in this fun, technology-based Mathematics lesson for the second grade classroom. The lesson includes resource links, video clips, interactive websites, and a section for pre-lesson...
Lesson Plan
Curated OER

Is That Your Final Answer?

For Teachers 7th - 9th
This unit on integers includes a pre-test, a post-test, four spreadsheets, and links to an interactive web-site to support the learning of integer operations. Access to computers and the Internet are imperative to this unit. The lessons...
Lesson Plan
Curated OER

Matrix Operations

For Teachers 10th - 11th
Two real-world activities to practice adding, subtracting and multiplying matrices to problem solve. Data from several Pro football quarterbacks is used in one activity to make some predictions based on their stats. Then the class takes...
Workbook
Math Mammoth

Grade 1 Worktext

For Students K - 2nd Standards
Use graphing, counting, and number lines to help first graders learn about addition and subtraction. An array of worksheets and activities are an excellent resource for your math lesson, whether you are focusing on counting skills...
Unit Plan
Common Core, Inc.

Multi-Digit Whole Number Subtraction

For Teachers 3rd - 4th Standards
A thorough exploration into subtracting multi-digit numbers, this series of lessons is an excellent way to guide learners of any skill level. With a step-by-step lesson plan and straightforward assessment tools, kids are sure to...

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