# Mental Math Teacher Resources

Find Mental Math lesson plans and worksheets

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**447**resources
Curated OER

#### Mental Math - Multiplication and Division

A challenging presentation outlines strategies for using mental math when multiplying and dividing. Learners solve a variety of problems while getting tips along the way. The PowerPoint should challenge even your best math pupils. Very...

Curated OER

#### Mental Math: Adding 10s

To develop mental math skills for adding 10s, learners read an example, solve one carefully scaffolded problem, and then complete 6 more independently. Pictures of 10-rods make the connection between sets of 10 and the corresponding...

Curated OER

#### Mental Math, Adding Decimals, Multiplication Facts

A thorough presentation is chock full of great tips on how to develop mental math skills, add decimals, and reinforce the memorization of multiplication facts. Learners solve a variety of problems, while getting tips along the way. An...

Curated OER

#### Mental Math: Subtract Tens, Problem Solving

Subtracting by 10s is easy for your young learners with this worksheet! There are three questions to accompany a bar graph, and there's a space for learners to explain their answers. Encourage them to use mental math here!

Curated OER

#### Mental Math: Breaking Apart to Add

Develop mental math addition skills by breaking apart addends into 10s and extras. Worksheet has problem solving steps at the top of the page, and 8 practice exercises that lead to increasing independence using the process.

EngageNY

#### The Division Algorithm—Converting Decimal Division into Whole Number Division Using Mental Math

Make math much simpler with mental math methods. The 16th installment in a series of 21 looks at ways scholars can apply mental math to convert division problems into easier problems with the same quotient. Multiplying or dividing both...

PhysEdGames

#### Mental Math Warm-Up

Use a simple warm-up that has pupils solving math equations to determine the number of reps for a certain exercise. Learners use mental math to solve basic equations. Next, they must do the same number reps of whatever exercise you...

CK-12 Foundation

#### Mental Math to Evaluate Products: Mental Math Halloween Candy

Time to put those mental math strategies into play with an interactive that has learners thinking about how many candies three friends get altogether.

CK-12 Foundation

#### Mental Math to Divide by Whole Number Powers of Ten: Mental Math to Divide Decimal Powers of Ten

Boost mental-math skills with an interactive that focuses on dividing whole numbers by powers of 10. Mathematicians solve five fill-in-the-blank and multiple-choice questions with help from a moveable decimal point in four example...

CK-12 Foundation

#### Mental Math to Multiply by Whole Number Powers of Ten: The Rule for Tens

Eight questions challenge scholars to use mental math while multiplying whole numbers by powers of 10. A tool with bouncing decimals demonstrates how and where the decimal moves. Question types include several multiple-choice, a...

Savvas Learning

#### How Many Hundreds?

Mental math skills are really important to develop. Kids practice metal computation by first adding the hundreds then the tens and ones. There are nine addition and nine subtraction problems to solve. This attractive worksheet is...

Curated OER

#### Mental Math Relay

Fourth graders use mental math, paper and pencil and calculators to solve problems. They are put into teams and race to see who gets the most correct answers per round. This lesson strengthen mental math and estimation skills.

Curated OER

#### How Do You Mentally Find Percents That are Powers of 10?

Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!

Curated OER

#### How Do You Mentally Find Percents That are Powers of 10?

Curated OER

#### Easy Mental Multiplication

In this math worksheet, students learn to multiply larger numbers by one or two digits mentally. Students read the simple techniques and then solve 25 multiplication problems using these mental math skills.

Curated OER

#### Multiplying 2 Digit Numbers Mentally

Have your class multiply two-digit numbers using mental math. This video goes through a step-by-step explanation of this process. You could have learners explain this process to a partner to make sure they understand the procedure.

EngageNY

#### Mental Math

Faster than a speedy calculator! Show your classes how to use polynomial identities to multiply numbers quickly using mental math.

Curated OER

#### Number of the Week

Here is an inventive, easy, and quick mental math activity you can use with your charges each week. You write a number on the board, then a student selects a card which tells them what to do with the number. One card says, "Multiply by...

Curated OER

#### Using Known Facts to Multiply and Divide Mentally

Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...

Curated OER

#### Mass Lesson

It's not just a slideshow, it's a lesson on mass. First, learners complete a mental math warm-up, where they determine the number before and after a series of given numbers, then they form groups to weigh packages and compare mass....

Curated OER

#### Speed Trials: Final Test

How quickly can your third graders solve these 63 math problems? Ranging from addition, subtraction, multiplication, and division, you can use this resource to assess your students' mental math. Cut the activity into thirds to make the...

DK Publishing

#### Addition Practice #2

Encourage young scholars to tap into their inner math-whiz as they add three and four-addend equations. The first 36 problems each have three addends (none over two-digit), and are written horizontally. Next, they complete eight more...

Curated OER

#### Number Puzzles

These math puzzles are sure to get your first and second graders thinking. Nine word problems about odds and evens, as well as greater than and less than, keep learners guessing. If you're working on mental math in your class, use these...

Curated OER

#### Subtraction Word Problems

Practice mental math using a activity full of subtraction word problems! First graders subtract slices of pizza, books from a shelf, and balls that are buried by a dog. They write the answer to each problem in the space provided after...

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