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### We found 1,371 reviewed resources for mental math

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Lesson Planet

#### Mental Math and Compatible Numbers

Strengthen the skills of mental math when using compatible numbers. Find numbers that benefit one another when doing the four operations. Practice correct estimating to make those operations go quicker and better understand if the...

EngageNY

#### EngageNY Grade 7 Math Module 2: Rational Numbers

Middle schoolers play the Integer Game to build a mental picture and conceptual understanding of integer operations. Tweens add, subtract, multiply, and divide signed numbers—a practice beneficial in developing their competency of...

Lesson Planet

#### Algebra: Use Mental Math to Solve Equations - Practice 2.8

This problem solving learning exercise requires mental math to solve 20 Algebra equations involving addition, division, subtraction and multiplication.

Lesson Planet

#### 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...

Lesson Planet

#### 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...

Lesson Planet

#### 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...

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...

Lesson Planet

#### 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!

Lesson Planet

#### Mental Math: Subtract Hundreds - Problem Solving 22.1

Four word problems are presented to second graders. For each, they can use their mental math skills to quickly subtract hundreds and arrive at an answer. This is a terrific inclusion for your Common Core math curriculum.

Lesson Planet

#### 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.

Lesson Planet

#### 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...

Lesson Planet

#### $1 Math

Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.

Lesson Planet

#### 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.

Lesson Planet

#### 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...

Lesson Planet

#### 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...

Lesson Planet

#### 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!

Lesson Planet

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

Lesson Planet

#### 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.

Lesson Planet

#### 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...

Lesson Planet

#### Easy Mental Multiplication

In this math learning exercise, learners 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.

Lesson Planet

#### Fact Learning, Mental Computation, Estimation

Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how to use...

Lesson Planet

#### Mental Math: Subtract Hundreds

In this subtraction activity, 3rd graders study a mathematical scenario about 2 airplanes and then answer/solve 5 problems involving subtracting hundreds.

Lesson Planet

#### The Reason It Is Unreasonable enrichment 18.3

In this determining reasonable and unreasonable percents word problem learning exercise, students use mental math and estimation to solve and determine if statements are reasonable or unreasonable. Students solve and explain six problems.

Lesson Planet

#### 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...

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