Young scholars work with rectangles to find generalizations for adding and subtracting odd and even numbers in part one of the lesson. In part two, students use geoboards to construct polygons, look for patterns, and find a general rule.

This activity has a little of everything. Compare fractions, determine if numbers are less than, greater than, or equal to. Then practice lining up the decimals to add and subtract decimal numbers. Then multiply decimals remembering to...

The addition and subtraction of decimals is a relatively simple process. The most important thing to remember is to have all of the decimal points lined up. This presentation gives that strategy, plus some others to use when performing...

Gain exposure to addition and subtraction symbols. First, pupils examine a visual number sentence (featuring Sponge Bob), filling in the correct symbol to make it a complete equation. Next, they read a run-on number sentence involving...

Youngsters practice looking for the links to numeracy in their classes. This isn't a worksheet but a curriculum guide for an entire unit. Teachers can use any part of the resource to extend or inform their teaching practices related to...

Translating complex numbers is as simple as adding 1, 2, 3. In the ninth lesson in a 32-part series, the class takes a deeper look at the geometric effect of adding and subtracting complex numbers. The resource leads pupils into what it...

Young mathematicians review the basic operations needed for addition and subtraction of fractions. They review the rules for addition and subtraction of fractions with the same denominator, how to change them if the denominators are...

This quick set of problems provides a brief refresher on the arithmetic of complex numbers. Learners need to multiply, add and subtract, and remember features of i when raised to a power. Included solutions are clear enough that...

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...

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...

The ninth part in a 25-part series emphasizes the importance of using properties of operations in evaluating sums and differences of rational numbers. Pupils solve problems and provide justifications for each step.

Students will add and subtract numbers less than 100 as well as understand and use the inverse relationship between addition and subtraction. They compose/decompose numbers up to 10 and understand a variety of situations in which...

Need a unit to teach fractions to fourth graders? Look no further than this well-developed and thorough set of lessons that takes teachers through all steps of planning, implementing, and assessing their lessons. Divided into eight...

Adding and subtracting mixed numbers will be a breeze with this guided worksheet packet. Learners work through examples outlining each step including rewriting mixed numbers as improper fractions, adding numerators, and rewriting the sum...

The class practices, on paper and/or on a TI graphing calculator the concepts of how to add, multiply, divide and subtract complex numbers using the correct property.

Students add and subtract polynomials. In this algebra lesson, students use algebra tiles to perform operation of polynomials. They model their problems and understand how to combine like terms using tiles.

In this mixed addition and subtraction activity, students add and subtract three-digit numbers with some regrouping. Student solve 49 problems.

In this mixed addition and subtraction worksheet, learners add and subtract three-digit numbers with some regrouping. Students solve 49 problems.

There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class...

In this algebra instructional activity, students add and subtract rational expressions using the LCM. They combine like denominators before they add and subtract the expressions. There are 8 questions.

In this finding the sums and differences of horizontal problems worksheet, learners add and subtract one-digit and two-digit numbers using mental math. Students solve 242 problems.

These true equations are missing numbers. Scholars examine a set of possible answers to fill in each of the nine equations. Consider covering up the answer options, as it may be more helpful to have learners simply figure these out...

There is a lot to learn about fractions, and this is a fun way to do it! Individuals participate in a Cyberchase activity to describe a fraction in terms of sharing parts of a whole. They determine the meaning of the parts of a fraction,...

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.