Kids are presented with the problem of finding the missing numbers to each of nine 100s squares. They'll need to subtract and add to make each puzzle equal 100. Great challenge or daily warm-up activity.

Investigating unique number patterns gets learners to put their thinking caps on. Your whole class examines numerical palindromes that are added and multiplied. The class works to find the pattern.

In this subtraction and addition worksheet, students fill in missing numbers in problems necessary to arrive at given answers. All problems use 1-digit numbers only.

Twenty subtraction problems make for a great instructional activity. Learners must use regrouping and subtraction to find the difference for 20 double-digit problems. 

In this negative number subtraction instructional activity, students solve 80 problems that require them to subtract using 1, 2, 3, and 4-digit numbers with negative results.

In this subtraction instructional activity, students solve a total of 35 problems, using numbers 0-9; a separate link is included for answers.

In this addition and subtraction worksheet, 1st graders complete a set of problems using numbers 1-10, then color according to a key to create a picture.

Pupils solve a set of 25 problems using 3-digit numbers and regrouping. A website is referenced for additional resources.

I can multiply, so why can't I add these radicals? Mathematicians use the distributive property to explain addition of radical expressions. As they learn how to add radicals, they then apply that concept to find the perimeter of...

A well-rounded unit on positive and negative integers is a great addition to your middle school math class. Learners work through five activities, each focused on a different skill, before playing a Game of Life to practice the...

Prealgebrarians use colored chips, stickers, and pencils to explore the world of integers. They discover absolute value, compare positive and negative integers, and apply operations to them. A detailed procedure for the three-part...

Engage young mathematicians in developing their basic arithmetic skills with these great hands-on activities. Using Unifix® cubes to model a variety of single digit addition and subtract problems, children build a basic...

Explore scientific notation in this mathematics lesson. Young mathematicians explore multiple representations of large number in scientific notation through the use of models, visual representation and expanded form. The lesson provided...

Brrrr it's cold in Alaska! When given the temperatures of Anchorage and Miami in the winter, your mathematicians will calculate how much warmer it is in Miami. Answer key provides two different solution choices. Great as a warm-up for...

Mathematics aces, after a warm-up activity with some easy calculations, practice solving rules of signs and powers of 10 equations. Multiplying and dividing decimals is also covered within this instructional activity in depth. A variety...

Third graders read and solve six word problems and decide whether to add or subtract. The numbers range in 2-digit up to 4-digit.

Investigate vectors and learn how to use them. Explore why size and direction, as well as knowing speed and distance, are important components of the vector problems you are trying to solve. This is an extensive lesson which includes six...

How many people and animals can cram into a single bed? Find out with this cross-curricular math and language arts lesson plan. Following along with a reading of the children's book The Napping House by Audrey Wood, young...

Working on adding and subtracting small numbers? Introduce five frames with a resource that visually supports your mathematicians' growing proficiency with counting strategies. 

What happens when you add negative and positive integers to one another? Do you add or subtract, and will the answer be positive or negative? Young mathematicians use blue and red polka dots to determine the value of an expression that...

After watching a brief video on addition and subtraction, young mathematicians are put to the test. Including 12 problems, individuals solve word problems to find the least number, total amount, and difference of numbers. 

A five-question interactive test scholars' knowledge of adding and subtracting decimals. A tool aids in problem-solving with movable parts that reveal addends and sums. Question types include one discussion, fill and in the blank, and...

In this subtraction learning exercise, the students figure out 14 subtraction problems using regrouping, decimals, positive and negative numbers. The students must tell if the problems are true or false.

Third graders play the game, "Who Wants To Be A Millionaire?" while subtracting using estimation. I really like the format of this fun game, which utilizes the lifelines and strategies found in the real game on television.