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Lesson Plan
Curated OER

Domain: Operations and Algebraic Thinking

For Teachers K - 2nd
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
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Worksheet
Curated OER

Basic Math Subtraction of Decimals 2

For Students 3rd - 5th
In this subtraction of decimals worksheet, students subtract numbers with decimals containing up to 4 digit numbers. Students complete 16 problems.
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Worksheet
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K12 Reader

Evaluating Efficiency

For Students 4th - 5th Standards
There's more than one way to solve a math problem! Introduce your class to this concept with a reading passage. After reading, learners answer five related questions.
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Lesson Plan
Curated OER

Quadratic Equations and Functions

For Teachers 8th - 11th
This comprehensive lesson plan reviews solving and graphing quadratic functions and functions of higher degree.  Using the vertex form of a quadratic functions, one finds the vertex, minimum or maximum, and axis of symmetry. A few word...
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Worksheet
Curated OER

Unknown Numbers in Sums and Differences - Step-by-Step Lesson

For Students 1st
First grade mathematicians will love to monkey around with an illustrated word problem involving missing bananas. They must decide how many bananas the monkey ate by counting the remaining bananas and by counting the number Lee had and...
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Worksheet
Curated OER

Picture Subtraction

For Students Pre-K - K
In this math instructional activity, students subtract two numbers that are also illustrated in pictures. For example, five minus three is also illustrated in balloons.
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Worksheet
Curated OER

Find the Difference

For Students 4th - 6th
In this find the difference worksheet, students solve subtraction equations and answer word problems. In this subtraction worksheet, students solve eighteen problems.
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Lesson Plan
Curated OER

Story Problems - Math

For Teachers K
Students participate in hands-on, computer activities to demonstrate the addition and subtraction of mathematical situations. Given a story problem, students determine when to add or subtract. Using word processing technology, students...
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Lesson Plan
Curated OER

Comparison Subtraction Stories

For Teachers 2nd
Second graders create stories that model comparison subtraction while using the environmental mats. They suggest situations in which they compare numbers. For example, if one student has 6 nickels and another child has 14 nickels,...
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Worksheet
Curated OER

Rapid Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction worksheet, students solve as many of the 40 addition and subtraction math problems as fast as they can with as much accuracy as they can.
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Worksheet
Curated OER

Rapid Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction worksheet, students solve 40 addition and subtraction math problems as fast as they can and be prepared to explain how they got their answers.
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Worksheet
Curated OER

Revise Subtraction: True or False?

For Students 5th - 6th
In this subtraction worksheet, students read and determine if 14 addition and subtraction math problems are true or false as written.
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Worksheet
Curated OER

Trigonometry Sum and Difference Identities

For Students 9th - 11th
For this algebra worksheet, students solve a word problem using trigonometric identities. They solve problems about a love triangle. There is an answer key.
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Worksheet
Curated OER

The Bellman Problem

For Students 9th - 10th
For this bellman worksheet, students use addition and subtraction to total expenditures.  They read a word problem and write an equation to solve it.  This one-page worksheet contains 1 multi-step problem.  The answer is provided at the...
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Worksheet
Curated OER

Gas Problem

For Students 7th - 9th
In this gas problem, students determine the number of gallons needed to buy in order to spend a specified amount.  They compute the mile per gallon.  This one-page activity contains 1 word problem.  The answer is listed at the bottom of...
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Worksheet
Curated OER

System of Equations: Elimination Method Using Addition and Subtraction

For Students 8th - 11th Standards
In this system of equations worksheet, learners decide if the addition, subtraction, or substitution method works best for 15 problems of two equations and two unknowns and then use the preferred method to solve the system. Theys are...
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Worksheet
EdHelper

Addition and Subtraction Using Place Value

For Students 2nd - 3rd
In this addition and subtraction worksheet, students solve simple problems where the tens and ones columns of numbers are labeled for them. Students then solve 4 word problems. Worksheet is part of a subscription site with links and is...
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Worksheet
Fuel the Brain

Addition Change Unknown

For Students 1st - 2nd
Using pictures, words, or numbers can help your learners with this addition worksheet. The problems give an original number of an item, with how many more they want. They have to find the answer by using addition to reach the ideal number.
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Lesson Plan
Curated OER

Candy Addition and Subtraction

For Teachers 1st - 2nd
Students practice computation.  In this addition and subtraction math lesson, students count M & Ms and Skittles to answer math problems and complete a related worksheet.
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Worksheet
Curated OER

Standard Written Method for Subtraction (2)

For Students 3rd - 5th
In this subtraction worksheet, students learn how to solve decomposition subtraction problems with 2-digit numbers. They then solve 9 subtraction problems on their own. The answers are on the last page of the packet.
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Worksheet
Curated OER

Check Subtraction

For Students 3rd
In this subtraction worksheet, 3rd graders check their own work by using addition problems. Students complete 4 problems of subtraction and 1 word problem checking their work for each.
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Worksheet
Curated OER

Divide by a Fraction

For Students 4th - 7th
In this dividing by fractions practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Worksheet
Curated OER

Subtraction Worksheet

For Students 5th - 6th
In this decimal subtraction activity, students solve 12 subtraction problems. Some of these subtraction problems involve regrouping.
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Worksheet
Curated OER

Take It One Step at a Time

For Students 3rd - 4th
For this following steps worksheet, students learn how to solve math money word problems by following steps. Students then determine the number facts for each problem and follow the steps to solve the problem.

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