Divisibility Rules Teacher Resources
Find Divisibility Rules educational ideas and activities
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It's not a short cut, just good old fashion number sense, but kids will love it. This presentation does a wonderful job describing the divisibility rules by showing how each one works, reviewing the rules as a collective and providing an example problem for the class to solve together. Tip: Have the class make a mini book, where each page houses one of the divisibility rules and an example.
In this tricks for finding multiples instructional activity, students explore rules of divisibility. They compute the sum of the digits to determine if a number is divisible by three. Additionally, students identify the last two digits of a number to determine if the number is divisible by four. This one-page instructional activity contains 28 problems.
In this divisibility rules worksheet, students learn when division is exact and not exact or has remainders. Students then follow the examples and find if the following numbers are division by the given numbers.
Seventh graders factor large numbers. In this factoring large numbers lesson, 7th graders use divisibility rules to factor 3 and 4 digit numbers. Students use knowledge of numbers such as is a number even or odd to begin the process of factoring.
Students explore strategies to solve number problems. They study divisibility rules. Students examine and practice multiples, factors, and palindromes. In groups, students play a "number property" game.
Students examine the rules of divisibility for the numbers 2, 3, 5, 6, 9 and 10. They apply these rules to larger numbers.
Students 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.
Solving factor trees is a helpful way to introduce prime numbers. Your math class practices using this method along with two-column tables to find if a number is prime or not. They also learn other vocabulary, such as composite numbers, that help them understand the concept of prime numbers.
Fifth graders investigate the concepts of composite and prime numbers. They factor different numbers and determine the number of factors for each. Based upon this information the number is declared prime or composite.
In this rules of division reteaching worksheet, 4th graders review how to divide with one and zero. They use the division rules to find the missing number in 7 problems and use comparisons in the next 3. They complete 1 word problem at the bottom of the page.
In this prime and composite numbers worksheet, 7th graders focus on the rectangular array and divisibility rules. Students solve 11 problems using these problem solving techniques.
In this divisibility worksheet, students read divisibility rules, then write yes or no to determine divisibility by given numbers. Houghton Mifflin text is referenced.
In this rational numbers worksheet, 9th graders solve and complete 12 different problems by dividing each equation. First, they use the division rules given at the top of the sheet to determine how they are going to solve each problems. Then, students use the distributive property to simplify each rational expression.
In this factors and prime factorization worksheet, 6th graders use examples to find all the factors for six numbers, then write six more numbers as products of prime factorization.
Third graders listen to information about Eratosthenes and review the definitions: prime, composite, multiples and divisible. They recreate Eratosthenes' method of compiling prime numbers. They create a poster.
In this finding prime factors worksheet, 6th graders read two strategies for finding prime factors, then practice using these methods by doing factor facts drills.
In this multiple meanings of the word "rule" worksheet, students read a dictionary entry of rule, match sentences with their definitions, and complete sentences showing personal understanding of the term. Students write five answers.
In this dividing word problems worksheet, students read word problems and use division rules to explain the solution procedures and answers. Students solve five problems.
In this multiplication and division worksheet, learners complete 5 fill in the blank questions where they solve a multiplication equation and then state which Property of Multiplication they used. Next, students solve 3 division problems and state which Rule of Division they used. Last, learners solve a word problem and state which property they used.