# Mental Math Teacher Resources

Find Mental Math lesson plans and worksheets
Showing 447 resources
PPT
Curated OER

#### Mental Math - Multiplication and Division

For Teachers 3rd - 5th
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...
Worksheet
Curated OER

For Students 1st
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...
PPT
Curated OER

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

For Teachers 3rd - 4th
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...
Worksheet
Curated OER

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

For Students 2nd - 3rd
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!
Worksheet
Curated OER

#### Mental Math: Breaking Apart to Add

For Students 1st - 2nd
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.
Lesson Plan
EngageNY

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

For Students 6th Standards
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...
Activity0:45
PhysEdGames

#### Mental Math Warm-Up

For Students 1st - 8th
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...
Interactive
CK-12 Foundation

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

For Students 6th
Time to put those mental math strategies into play with an interactive that has learners thinking about how many candies three friends get altogether.
Interactive
CK-12 Foundation

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

For Students 6th - 8th Standards
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...
Interactive
CK-12 Foundation

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

For Students 6th - 8th Standards
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...
Worksheet
Savvas Learning

#### How Many Hundreds?

For Students 2nd - 3rd Standards
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...
Lesson Plan
Curated OER

#### Mental Math Relay

For Teachers 4th
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.
Instructional Video2:59
Curated OER

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

For Teachers 6th - 8th
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!
Instructional Video3:35
Curated OER

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

For Teachers 6th - 12th
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!
Worksheet
Curated OER

#### Easy Mental Multiplication

For Students 5th - 6th
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.
Instructional Video1:14
Curated OER

#### Multiplying 2 Digit Numbers Mentally

For Teachers 3rd - 8th
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.
Lesson Plan
EngageNY

#### Mental Math

For Students 10th - 12th Standards
Faster than a speedy calculator! Show your classes how to use polynomial identities to multiply numbers quickly using mental math.
Lesson Plan
Curated OER

#### Number of the Week

For Teachers 3rd - 5th
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...
PPT
Curated OER

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

For Teachers 4th - 5th
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...
PPT
Curated OER

#### Mass Lesson

For Teachers 2nd - 3rd
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....
Worksheet
Curated OER

#### Speed Trials: Final Test

For Students 3rd - 5th Standards
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...
Worksheet
DK Publishing

For Students 2nd - 3rd Standards
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...
Worksheet
Curated OER

#### Number Puzzles

For Students 1st - 2nd Standards
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...
Worksheet
Curated OER

#### Subtraction Word Problems

For Students 1st - 2nd Standards
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...