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...

An outstanding PowerPoint presentation on two-digit addition with regrouping awaits your class. The slides present the steps necessary in extremely clear fashion. There are two "internet games" embedded in the final slide that lead to...

As an assessment or worksheet this resource has 10 versions of adding and subtracting negative numbers. Each version comes with two options, one with an answer choice box and one without. Let this resource do the work for you when...

In this pre-algebra addition and subtraction of fractions and mixed numbers worksheet, students add or subtract fractions in the first 10 problems. They write the answers in simplest terms. They add or subtract mixed numbers in the last...

Scholars investigate the concept of adding positive and negative numbers. They practice adding using the number line for scaffolding. This can be done as a game for younger learners, but may also be helpful for engaging the older pupils.

Guide young mathematicians through the crazy world of negative numbers with a handy reference document. Offering clear instructions for adding and subtracting positive and negative integers, this resource is a great way to...

Help the class visualize operations with complex numbers with a instructional activity that formally introduces complex numbers and reviews the visualization of complex numbers on the complex plane. The fifth installment of a...

Are complex numbers and binomials similar? This stack of slides provides an introduction to complex numbers and shows how to operate with them. The worked examples show a connection between operating with binomials and operating with...

As penguins jump off of an iceberg, young mathematicians count the remaining penguins in order to discover the whole number subtraction answer. As they work through the questions, they can manipulate the red dot to add and subtract more...

Practice adding whole numbers by combining the amount of fish Alice and Bob catch. As young mathematicians work through each problem, they are asked to find one more plus the amount of fish already caught. They can manipulate the...

Represent complex numbers in two ways. Pupils use the interactive to convert polar and rectangular representations of complex numbers. The learners drag an overlay back and forth over the coordinate plane to reveal the polar coordinates...

Challenge mathematicians to crack the binary code with an interactive that focuses on numbers nine to 16. A table reveals exponential equations to aid in answering multiple-choice questions. A discussion question gauges comprehension. 

Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between...

Get real about learning the real number classification. Young mathematicians create a graphic organizer of the real number system using an interactive. They answer a set of challenge questions on the classifications of real numbers.

A six-question interactive tasks scholars with adding binary numbers one through eight. A tool acts as a visual aid to showcase the patterns made when working with base—2, digits zero and one. Question types include fill in the blank,...

Adding and subtracting mixed numbers need the same attention that regular fractions do by finding a common denominator. If you plan to use a vertical line-up of the fractions then this video is for you. It just introduces this method, it...

Students use recipes to add fractions and convert improper fractions to proper fractions and mixed numbers. In this fraction lesson plan, students watch a video on someone making a recipe and compare and change the recipes to fit the...

Preview a presentation that goes over the definitions of postive numbers, negative numbers, and integers with your mathematicians. Many examples of how these numbers are used in daily life are presented, as well as examples of how these...

In this online interactive adding negative numbers worksheet, students practice their math skills as they solve 15 problems that require them to add 2 negative numbers between -100 and 100. The answers may be typed in on the worksheet...

In this addition activity, students find the sums in 12 problems. They add two negative two digit numbers in each problem. They enter and submit the answers online, or print out the page as needed.

Which of these numbers add up to 20? Scholars find various addend pairs in a grid, circling those that add up to 20. There are many pairs they can find here, and the answer sheet offers some excellent kinesthetic practice ideas for...

Subtraction is all about opposites, and the fifth activity in a series of 25 introduces the concept of subtracting integers. Pupils connect subtracting with discarding a card in the integer game. They develop the rule for subtracting...

Mix things things up in your elementary math class with a series of problem-solving exercises. Presented with a series of mixed number word problems, young mathematicians are asked to solve them by using either visual fraction...

Develop the rules for adding rational numbers. Pupils continue to work on adding integers. Young mathematicians use their experiences to develop the rules for adding integers with like and unlike signs. They finish the lesson plan by...