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Divisibility Tests for 3 and 9
Who knew the sum of a number's digits gives such interesting information? The 18th installment of a 21-part module has scholars investigate division by three and nine. After looking at several examples, they develop divisibility tests...
West Contra Costa Unified School District
Divisibility Rules Justified
How do you know if a number is divisible? Instructors first prove the divisibility rules for three and four and then class members use this modeling to prove given divisibility rules for eight and nine either individually or in groups.
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How to Use the Rules of Divisibility and Estimation
Number patterns help your kids learn divisibility and estimation rules. This activity aims to strengthen their math fact memorization skills by presenting several rules they are expected to memorize through practice.
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Divisibility Rules
Sixth graders strengthen their knowledge of the divisibility rules. Students access that mental math can be faster than the calculator for certain types of problems.
Students can make generalizations and discover patterns in finding the...
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Divisibility Rules Using Scientific Calculators
Young learners apply divisibility rules to determine if a number is a factor of another number. They discuss what numbers are factors of another number and identify patterns using divisibility rules.
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Math - Divisibility
Middle schoolers explore the concept of divisibility. In this divisibility instructional activity, students determine which numbers are divisible by another number.
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Divisibility
In this math worksheet, students are given a reminder of what divisibility means. Students then answer 10 divisibility questions.
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Divisibility Buzz
Students play Divisibility Buzz to reinforce divisibility rule for three.
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Divisibility
In this math worksheet, learners examine the 20 numbers in order to test their divisibility. The rules of divisibility are given at the top of the page.
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Divisibility Rules Study Guide
In this mathematics worksheet, 4th graders write the divisibility rule for each factor given. Then they practice the rules by dividing the numbers listed by each factor and place a check mark in the box if it is a factor of the number.
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Divisibility
Middle schoolers practice divisibility. In this divisibility lesson, students complete a worksheet to tell which numbers are divisible by 2,3,4,5,6,8,9, and 10.
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Dynamic Divisibility
Students examine the rules of divisibility for the numbers 2, 3, 5, 6, 9 and 10. They apply these rules to larger numbers.
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Divisibility Rules
For this divisibility rules worksheet, young scholars solve problems using the division rule for the number three. Examples and explanations are given prior to the exercise. This one-page worksheet contains approximately 20 problems.
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Rules of Divisibillity
Sixth graders participate in a lesson that covers the Rules of Divisibility. They play a game for a warm-up before the direct instruction. Following the rules being covered they finish the lesson using an assignment included in the...
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A Prime Investigation wtih 7, 11, and 13
Ninth graders investigate divisibility rules. In this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13. Students examine certain six-digit numbers that are divisible by 7, 11, and 13.
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March of the Dividing Ant
Learners inspect divisibility rules. In this divisibility rules lesson, students study the relationship between factorization and the divisibility rules for 2, 3, 5, 6, 9, and 10. Learners read One Hundred Hungry Ants and A Remainder of...
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Sieve of Eratosthenes
Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.
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Divisibility Rules
Eighth graders explore Excel and discover rules of divisibility for the numbers 2, 3, 4, 5, 6, 9, and 10; students examine multiples of 2 using pencil/ paper, then create a chart in Excel that will allow them to more easily see patterns...
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Divisible
In this math worksheet, pupils find the answers to the problems that use large numbers to apply the rules of divisibility.
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Factors, Divisibility, and Relatively Prime
Seventh graders explore the concept of divisibility. In this divisibility lesson, 7th graders use divisibility rules to find factors of numbers. Students create foldables to illustrate divisibility rules.
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Twenty Questions: The Hundred Chart
Use the 20 Questions game to practice math vocabulary and number properties! Project a hundreds chart and hand one out to learners. Ideally, give them counters (beans would work well) to mark off the chart so you can play multiple times....
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Divisibility Book
Young scholars create a notebook with divisibility rules in it. In this algebra lesson, students write down the rules that determine the factors of a number. They continue to add to the book and use it to help them on their problems.
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Rules and Responsibilities: Youth and the Process of Change
First graders analyze politics by participating in a class rules lesson. In this democracy lesson, 1st graders identify several class and school rules they dislike and conduct discussions to examine if they should be changed or not....
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DIVISIBILITY RULES!
Young scholars become familiar with divisibility rules as they view a fun PowerPoint Presentation. Within this lesson, students are provided with a worksheet that explains the divisibility rules. Finally, young scholars are given the...
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