Worksheet
Curated OER

Online Math Problems and Estimation

For Students 5th - 6th
In this online math problems worksheet, students complete a variety of exercises including finding the missing numbers in eight math problems, two money and estimation calculations and estimating the difference in ten math problems by...
Worksheet
Curated OER

3-Digit Subtraction with Borrowing

For Students 2nd - 4th
In this 3-digit subtraction with borrowing worksheet, learners problem solve. In this fill in the blank worksheet, students find sixteen differences.
Worksheet
Curated OER

Adding/Subtracting Integers

For Students 7th - 8th
In this integer instructional activity, students find the sum and difference of positive and negative integers. Each equation contains two to three terms, with multiple operations. Thirty problems are provided, with an answer sheet.
Lesson Plan
World Wildlife Fund

Take 6

For Teachers 3rd - 5th Standards
Investigate the various properties of the number six with this elementary math lesson plan. From simple addition, subtraction, multiplication, and division problems to the creation of hexagonal tessellations, this lesson plan covers all...
Lesson Plan
Curated OER

Math Match Up!

For Teachers 2nd - 3rd
Help learners solve problems using multiplication and repeated addition. Using counters, learners will be paired up to solve problems. They will go through a series of questions and show models with the counters for the solution. Then...
Worksheet
Curated OER

Add and Subtract within 1000

For Students 1st - 2nd
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
Activity
Curated OER

Sum and Difference angle formulas

For Teachers 10th - 12th Standards
Learners use the sum angle formula for sine to derive the sum and difference formulas for cosine and tangent. The level of difficulty is quite high. Learners must be familiar with trigonometric identities as well as the characteristics...
Lesson Plan
Curated OER

Area, Arithmetic and Algebra

For Teachers 8th - 9th Standards
Explore the concept of this perfect square trinomial and difference of squares lesson. A hands-on activity that uses paper rectangles and squares to illustrate the perfect-square trinomial and difference of squares formulas.
Worksheet
Curated OER

Add and Subtract with Unlike Denominators

For Students 5th - 8th
In this adding and subtracting with unlike denominators worksheet, learners add and subtract fractions with unlike denominators. They complete six problems.
Worksheet
Curated OER

Addition Drill

For Students 1st - 3rd
A basic problem-solving learning exercise has scholars completing 10 addition problems. The problems each involve two addends, and have single, double, and triple-digit numbers. Once they have found the sum, they locate the number...
Lesson Plan
Curated OER

Pac Man Subtraction

For Teachers 3rd - 4th
Third and fourth graders engage in a game using visual symbols, auditory responses and tactile stimuli to further their understanding of subtraction. A worksheet imbedded in this plan explains how to teach the game.
Worksheet
Curated OER

Add and Subtract within 1000

For Students 2nd - 3rd
There are some missing parts in these addition and subtraction problems. Scholars start by completing two number sentences, each involving all three-digit numbers. Then, they examine another number to determine the value of the tens...
Worksheet
Curated OER

Word Problems

For Students 3rd - 4th
Word problems are sometimes tricky for learners to solve. Use this resource to help your class cement their problem solving, and addition and subtraction skills.
PPT
Curated OER

Non Calculator Math Quiz

For Teachers 4th - 6th
Here is a quiz which does not allow calculators. Kids solve a variety of problems that range from addition and subtraction of decimal numbers to probability and perimeter. There are 24 problems to solve. As stated on the resource, this...
Lesson Plan
Curated OER

Dividing with Fractions

For Teachers 5th - 6th
Use paper strips or models to relate division problems to division of fraction problems. Since the materials can be broken up, it helps them to show how they can complete repeated subtraction with fractions and not just whole numbers.
Lesson Plan
Pennsylvania Department of Education

Multiplication Using Arrays

For Teachers 2nd - 4th
Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...
Worksheet
Curated OER

Add and Subtract

For Students K - 2nd
In these twenty pages of addition and subtraction problems worksheets, students subtract one-digit from one-and two digits, add one-digit plus one- and two digits, and both add and subtract to problem solve. Students solve 200 problems.
Worksheet
Curated OER

Add and Subtract Money - Word Problems

For Students 3rd
In this simple word problem worksheet, 3rd graders solve 4 problems using addition or subtraction, showing their work in the spaces provided. An answer key is provided.
Lesson Plan
Curated OER

Investigation - Snack TIme

For Teachers K
Students explore solving addition and subtraction problems. They solve real life problems. Students participate in a simulation activity to find the missing addend. They demonstrate adding and subtracting whole numbers.
Worksheet
Curated OER

One More/One Less Scoop

For Students K - 2nd
It's so simple: scoop a spoonful of counters, count them, and then make a set that is one more than that number. Next, make a set that is one less. The tangible nature of this basic addition and subtraction activity will keep learners...
Worksheet
1
1
Curated OER

Inverse Relationships Add/Sub (C)

For Students 2nd - 3rd
In this inverse relationships instructional activity, students use the given numbers to solve the addition and subtraction sentences to solve the 16 inverse relationship problems.
Worksheet
Savvas Learning

Missing Numbers

For Students 1st - 2nd Standards
Young learners answer six fill in the blank questions where they determine the missing addends for four addition word problems. They fill in the missing numbers on a problem that involves both addition and subtraction. Lastly, they...
Worksheet
Curated OER

Math Mountain Families Challenge

For Students 1st - 2nd
This worksheet requires finding the missing number in the equation using addition and subtraction. Students solve four problems. A key is provided.
Instructional Video3:09
New Mexico State University

Number Rights

For Students 2nd - 6th Standards
You do not have to be whole to be important. Individuals watch a video on the importance of rational numbers on the number line. Scholars use their knowledge to rename numbers on the number line as well as place rationals on a number...

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