Lesson Plan
Curated OER

Popping Problems!

For Teachers 4th
Turn your math lesson into a carnival game with this fun, outdoor activity. After reviewing the concept your class will be practicing briefly, split your class up into teams and head outdoors. These teams work to solve math questions and...
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...
Lesson Plan
Curated OER

Summer Bridge Activities 4-5

For Teachers 4th - 5th
In this cross-curricular worksheet, students complete various activities. They complete a crossword puzzle dealing with electricity, change mixed numbers into decimals, subtract fractions, identify adjectives in sentences, solve money...
Lesson Plan
Teacher Created Materials

Rounding Numbers

For Teachers 3rd Standards
Pupils practice rounding numbers to the nearest ten and hundred. They solve rounding numbers word problems, and add and subtract rounded numbers. This nice, neat handout fully serves its purpose and can help meet CCSS.Math.Content.3.NBT.1.
Lesson Plan
Curated OER

Math-Literature Connection: Counting with Jack the Builder

For Teachers K - 2nd
Connect literature (Jack the Builder) with mathematical concepts. In a series of computation, geometry and number sense activities, pupils count on to add, count back to subtract, build cylinders, cones, and rectangular prisms, and name...
Worksheet
Scholastic

Problem-Soving Strategies, Practice 1: Sample

For Teachers 2nd - 5th
A variety of word problems help your learners examine the ways that they find solutions. Each question provides opportunities to add, subtract, and multiply time, measurements, and money.
Worksheet
Scholastic

Sums & Differences

For Students 3rd - 6th Standards
Word problem solving and inter-galaxy football combine to offer a great worksheet for practicing adding and subtracting whole numbers! 
Worksheet
Curated OER

Solving Rational Equations

For Students 8th - 12th Standards
In this algebra worksheet, students solve rational equations. They add and subtract rational equations and check for extraneous roots. There are 16 questions with an answer key.
Worksheet
Curated OER

Fractions and Percentages 9.1

For Students 4th - 6th
For these calculating and converting fractions and percentages worksheets, learners add and subtract fractions, solve word problems, and convert fractions to percentages and percentages to fractions. They solve 85 problems.
Lesson Plan
Curated OER

Developing Strategies for Addition and Subtraction

For Teachers 2nd - 4th
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
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.
Worksheet
Curated OER

Addition and Subtraction Problems: numbers to 20

For Students 2nd - 4th
You'll never be out of subtraction worksheets again. Here are 11 different sheets that require learners to add or subtract to find sums or differences up to or less than 20. Perhaps these can be used at home, at a work station, or to...
Worksheet
Curated OER

Addition and Subtraction: numbers to 20

For Students 2nd - 4th
Does your school encourage learning math facts or fast facts? If it does you can definitely use this resource. There are 20 lists, each list contains 10 problems, and each problem set focuses on adding and subtracting specific numbers,...
Lesson Plan
Curated OER

Regents Exam: Solving Rationals 1

For Teachers 9th - 12th
In this rational number worksheet, students add and subtract fractions containing variables. They find common denominators and solve for the unknown. This four-page worksheet contains eighteen problems. Answers are listed on the last...
Worksheet
Maths Blog

Make 20

For Students 1st - 3rd Standards
There are quite a few ways to make the number 20 through addition. Learners fill in missing addends to reach the sum of 20 then answer additional related questions. This is a good resource because it has the class both add to 20 and...
PPT
Curated OER

Subtraction shortcuts and Tips

For Teachers 2nd - 3rd
Subtraction techniques, shortcuts, and tips are the focus of this presentation. Young mathematicians follow along as the slides go through the steps necessary to correctly borrow and regroup when subtracting. Students practice their...
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,...
Lesson Plan
Curated OER

Number Problems

For Teachers 9th - 11th
Students write equations for problems. In this number instructional activity, students add, subtract, multiply and divide numbers to solve for a variable. They rewrite word problems using algebraic symbols.
PPT
Curated OER

Add Like an Egyptian

For Teachers 5th - 7th
Add and subtract 20 interesting problems, all written with ancient Egyptian numbers. A great challenge to increase interest in math and problem-solving skills, kids will work through each problem; answering by drawing the correct...
PPT
Curated OER

Harold Goes Fishing: Subtraction

For Teachers K - 1st Standards
This PowerPoint is fully animated! Learners will subtract and add the number of fish Harold catches and puts in his boat. All sums and differences are under 6 and include algebraic  reasoning to figure out. Fun, interesting, and...
PPT
Curated OER

Calculator Word Problems

For Teachers 4th - 5th
Eight word problems help learners to problem-solve using a calculator. They'll add, subtract, multiply, and divide to find each answer. Note: The problems are intended for a British audience so all monetary values are in pounds and...
PPT
Curated OER

Subtraction from 10

For Teachers K - 1st
Mr. Monkey is your math host today, and he is here to help your class subtract from 10. They can count back as a number line is used to demonstrate subtraction from 10. Each problem includes Mr. Monkey, an equation, and the number line...
Worksheet
Curated OER

How Many Ducks in the Pond?

For Students K - 1st
Kindergarten counters will be delighted to doddle with the ducks pictured on a two-page illustrated worksheet. The six story problems and two equations ask learners to add and subtract as the ducklings dabble in the pond.  An answer...
Activity
Florida Center for Reading Research

Phonological Awareness: Phoneme Manipulating, What's Left?

For Teachers 2nd - 3rd
Scholars subtract initial phonemes from given picture word cards to create new words. Feet becomes eat, and shelf becomes elf.

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