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### We found 314 resources with the keyterm sum

Videos (Over 2 Million Educational Videos Available)

2:54

Phonics Song 2 (new version)

2:45

Population Genetics

6:09

Three-Dimensional Coordinates and the...

Other Resource Types
(314)

Lesson Planet

#### Arithmetic Maker

With endless possibilities, you can create custom flashcards to take to class as easy as 1, 2, 3! Let this flashcard creator do the work for you, just chose the level of difficulty, add or subtract, and the number of place values. Each...

Lesson Planet

#### Halloween Math Maze: Worksheet 1

After solving the twenty-six addition problems on this ghostly instructional activity, your class must find the path to the haunted house. By following the even-numbered sums, they will find the way! Answers are provided.

Lesson Planet

#### George Washington Carver Coloring and Activity Book

Learn about the interesting life of George Washington Carver and his many accomplishments with this series of worksheets for primary grade learners. From coloring pages and word searches, to non-fiction reading passages and math skills...

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#### $20 Dot Map

Challenge the addition skills of young learners with this open-ended math problem. The task is simple, get from start to finish by connecting a series of three numbers. The trick is that the sum of the numbers must be less than or equal...

Lesson Planet

#### Kiri's Mathematics Match Game

Learning math is so much more fun when it involves playing games. Following the rules of the classic game Memory, young mathematicians flip over two cards at a time as they look for numbers whose sum or difference is equal to the value...

Lesson Planet

#### Alexander, Who Used to Be Rich Last Sunday

Using money as a context for teaching basic arithmetic is an excellent strategy for engaging young mathematicians. Following along with a class reading of the children's book Alexander, Who Used to Be Rich last Sunday by Judith Viorst,...

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#### What is the Opposite, or Additive Inverse, of a Number?

Teach your class about the additive inverse! Using examples first and a definition second, this video explains what the additive inverse it and how to find the additive inverse of any given number or variable. A quick concept review for...

Lesson Planet

#### How Do You Add Integers Using a Number Line?

Confused about adding integers? Use a number line to help you get a visual on which way to move according to the sign of the numbers. Negative means you move left on the number line and then of course positive numbers mean you move to...

Lesson Planet

#### Singapore Math: Grade 3a, Unit 2 (part 1)

Taking a closer look at addition and subtraction using simple problems, a math video explores the terminology used to describe these processes. The instructor uses visual means to describe what these processes entail. Use it as a way to...

Lesson Planet

#### What is the Associative Property?

A straightforward definition of the associative property of addition and multiplication, this resource could be used to help learners tackle the concept. You might consider giving the link to struggling class members so they can use it...

Lesson Planet

#### How Do You Find a Missing Term in a Polynomial?

The instructor does a very good job of explaining all the things you need to do to find the integer values of this given trinomial. She demonstrates how to set up a template to be able to check the signs of the terms. Next step, what are...

Lesson Planet

#### How Do You Find the Degree of a Polynomial?

How do you determine the degree of a term? How do you determine the degree of a polynomial? Oh my! Observe the teacher as she shows you just how to figure out the degrees, first of terms, then of polynomials.

Lesson Planet

#### Double Dare Addition!

Students apply basic number concepts and computation skills while engaging in an enriching group activity. Then they demonstrate their knowledge of addition using a medium that enables everyone to show their solutions for immediate...

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#### Decimal Addition

Practice adding decimals by completing 26 practice problems. Scholars examine two examples before trying these on their own. They add two and three-digit numbers with decimals, regrouping when needed. Not all numbers have decimals, but...

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#### Fact Families

With a few extra numbers, these fact families would be complete! After looking at an example, scholars write in the sums and differences for six equations as part of three different fact families. This is really for beginners to this...

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#### Adding Two Numbers

Keep addition drills interesting by varying the exercises. There are four separate sections here for youngsters to solidify their understanding of adding three-digit addends. First, they calculate eight vertically aligned equations,...

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#### Ordering

Money is a great medium for math problems, and learners practice with coins in these addition equations. First, they add up five sets of coins (one is done for them), writing down the totals below each. Next, scholars sequence these...

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#### Addition Grid

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...

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#### Adding Animals

Writing equations from images helps young mathematicians grasp addition, especially when they get to look at cute animals as they do it. There are six number sentences here, each illustrated with a set of animals corresponding to...

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#### Addition Word Problems #1

Math is all around us, and scholars observe various addition scenarios as they solve 15 word problems. Each of these involve two-digit addends, some of which are money values. Although there are no decimals or fractions, learners do need...

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#### Addition with 3-Digit Numbers #1

Once your mathematicians can add two-digit numbers, it's time to bring on the three-digit addends. Here are 20 practice problems, each involving two whole-number addends. Learners do not need to regroup for any of these, and they have...

Lesson Planet

#### Adding Machines

Turn your first graders into adding machines! This is a fun way to practice single-digit addition, and scholars complete 25 equations. Each machine has a function; five numbers go into the machine, are added to, and emerge on the other...

Lesson Planet

#### Adding 2-Digit Numbers

If you're looking for guided addition problems, here is a practice list of 30. All of these have two double-digit addends, and many require regrouping. There are three example problems for learners to reference, each of which also...

Lesson Planet

#### Adding Up

Make addition visual in order to help beginners understand the concept. They add up beads on a string, examining an example before trying it on their own. Learners fill in addends and sums for these, and sometimes both. Although...