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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 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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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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Casting Out Nines-- Divisibility By 9
In this math instructional activity, students learn the divisibility rule for 9s-- if the sum of the digits in the dividend is a multiple of 9, there will be no remainder in the quotient. Students complete 27 division problems with a 4...
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Divisibility Worksheet
In this divisibility worksheet, students complete 9 problems in which they determine which number is divisible by the given number. They choose between 4 numbers for each divisibility factor. They complete the pages on-line and print the...
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Divisibility: Homework
For this divisibility worksheet, students tell whether numbers are divisible by given numbers, use a table to solve 2 word problems and solve 1 addition word problem. Houghton Mifflin text is referenced.
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Divisibility
In this divisibility worksheet, students read divisibility rules and then check the boxes in the chart if the 3 digit number can be divided by numbers 2 through 10. Students do this for 5, 3 digit numbers.
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Divisibility Rules Extension
In this divisibility rules worksheet, students tell whether 10 given numbers are divisible by 2,3,4,5,6,9 or 10. Answers are given on page 2, problems are printed 2 sets per page for copying purposes.
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Dynamic Divisibility
Pupils 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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Recognize Numbers Divisible by 3 and 6
In this divisibility worksheet, students analyze ten two-digit numbers and circle all those divisible by 3. Students then do the same with the number 6. No divisibility rules are provided.
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March of the Dividing Ant
Students 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. Students read One Hundred Hungry Ants and A Remainder of...
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Sieve of Eratosthenes
Young scholars 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...
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Divisibility Rules
For this divisibility rules worksheet, students review the rule for divisibility by 2 and then make a list of numbers from 20 to 50 that are divisible by 2. Students then mark an 'x' for the numbers that are divisible by 2. Students...
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Divisible
In this math worksheet, learners find the answers to the problems that use large numbers to apply the rules of divisibility.
Noetic Learning
Divisibility Questions
In this divisibility activity, learners solve 4 yes/no questions. Students decide if each three digit number is divisible by the numbers given.
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Number Patterns
An easy way to introduce numerical patterns, these activities can be made simpler by using addition, or more difficult with division, fractions, and percentages. Children examine patterns and determine the missing number in the sequence....
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Factoring to Find Divisors
For this math worksheet, students find all factors of five two digit numbers. They tell the related division facts. Students list the factors of the numbers.
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Prime Time
Fifth graders complete activities related to prime and composite numbers. For this prime lesson, 5th graders make a hundreds chart with all the prime numbers. They create their own card game which deals with prime and composite numbers.
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Number theory and fractions word search
For this number theory and fractions worksheet, students search for words representing number theory and fractions in a word search. Students search for 15 words.
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Smart Cookie Factors
Learners examine the concept of finding the greatest common factor. They complete number of activities as they practice identifying prime and composite numbers. Pupils apply rules of divisibility and find the greatest common factor while...
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Number Theory and Fractions Vocabulary Crossword
In this math crossword, students use a set of clues and 15 words about number theory and fractions to complete a crossword puzzle. A reference web site is given for additional activities.
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Number Theory and Fractions Vocabulary
In this fractions vocabulary learning exercise, students match a set of 15 number theory and fraction vocabulary words with their definitions. Answers are included on page 2.
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TI-82 PROFICIENCY
Students find the proper factors for numbers one through fifty using either the divisibility laws or TI-82. They determine the sum of the proper factors for each number. If the sum of the factors is less than the number itself, then this...
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Prime Numbers and Factors
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,...