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...

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.

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

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...

Students use mental math. They describe reasonable and unreasonable sums and differences. Students use mental math to find the sums and differences of addition and subtraction facts at random. They solve addition and subtraction facts...

In this mental math worksheet, students, with a partner, problem solve the answers to twenty word problem and mathematical equations.

Upper graders examine Native American culture while practicing mathematical concepts related to patterns and estimation. They will use mental math to add/subtract single digit numbers.

Fifth graders work in groups to practice adding decimals. In this adding decimals activity, 5th graders call out different money amounts to each other and mentally add the coins called out. Students take turns calling out and adding the...

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...

Students play a math game. In this number sense and mental math lesson, students play a game where they use mental math to form equations that result in the target number required to win the game.

Students investigate integers and solve problems using integers. In this algebra lesson, students solve problems to help improve speed and accuracy of mental math. They develop a deeper knowledge of the way integers are used on a daily...

Second graders subtract two-digit numbers. In this mathematics instructional activity, 2nd graders subtract both with and without regrouping. Students use manipulatives and place value mats to assist in problem solving.

Don't let the rules overrule the lesson plan. Mental math steps in and helps learners understand exponent patterns. The material focuses on the introductory problems of exponents, such as simplifying expressions. Teacher guides are...

Problem solving is a skill of its own. Learners use a variety of problems to encourage mental math and logic to get the correct answer. Guiding questions are provided along the way to encourage the right way of thinking to help tackle...

It's more than just numbers on a line, its an organizational, mental math machine to help learners understand the value of numbers. The tool is handy when introducing positive and negative integers to see their values and...

Students investigate the concept of ten and how it is part of the real number system. They find the quantity of ten using as many combinations as possible. They can count using manipulatives, write on paper, or by doing mental math.

Fifth graders complete a mental arithmetic race worksheet while reviewing the associated concepts. In this mental math lesson, 5th graders complete as much of the associated worksheet as they are able to in one minute. They review and...

Students engage in a hopscotch game where each square represents a number. In this mental math and movement lesson, students take turns playing traditional hopscotch, but add a mental math component where they add or subtract specific...

Students are divided into two teams. They then solve simple math problems using mental math. When they have the answer, they run and write their solutions on the board and swat it with a flyswatter. Then the next group moves up and takes...

Learners access prior knowledge to round numbers and add decimals. In this mental math lesson, students share the book Betcha and calculate estimates for three jars based on the book. Learners calculate money answers based on coins...

Pupils build confidence working with percents as they work several types of percent problems to increase their fluency. The resource contains two sets of problems specifically designed to build efficiency in finding solutions of basic...

Class members solve problems to find the whole when given a percent. They  use double line numbers and factors of hundred to help break the 100 percent into equal segments. 

Learners form a mental map of their residence in relation to school and recreate it on paper showing distance, direction, location and symbols. This instructional activity is designed to introduce students to geographic thinking.

Young scholars use problem-solving approaches to investigate mathematical content. They formulate problems from situations within and outside mathematics content. They warm up with a survey done by the teacher. Everyone uses practice...