Curated OER
Factors and Prime Factorization
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.
Curated OER
Prime and Composite Numbers, Prime Factorization
Students research prime and composite numbers. With a partner, students use graph paper to draw rectangles of various sizes. They list the dimensions of rectangles and discuss how the dimensions relate to the factors of each number....
Curated OER
Prime Factorization
In this math worksheet, students find the solutions to the problems while looking for the prime factors. There is an example at the top of the page.
Helping with Math
Factors with Prime and Composite Numbers (2 of 2)
Ten two-digit numbers are listed for fourth graders to factor. Once they have factored each, they circle whether the original number is prime or composite. If you click on the "Print Worksheet" button, the printable spreads the problems...
Curated OER
Prime and Composite Numbers
Eighth graders explore prime and composite numbers. Given division problems, they use color tiles to model solutions to division problems. Through activities and observation, 8th graders discover the meaning of prime and composite...
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Practice in Prime Factorization
In this practice in prime factorization worksheet, learners solve 8 columns of 10 problems each about prime factors for two and three digit numbers, plus two review problems in each column.
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Primes and Triples
In this primes worksheet, students list three triples that are generated by formulas. They explain how to generate these formulas and discuss the Pythagorean Triples. This one-page worksheet contains one multi-step problem.
Curated OER
Factorization
For this algebra worksheet, students factor number using their prime factors. They use a factor tree to help them find their prime numbers as they factor out. There are 20 factoring problems with an answer key.
Math Mammoth
Factoring and Primes 2
In this factoring learning exercise, students read about prime factorization, factor using factor trees, build numbers from primes and complete a challenge puzzle.
Curated OER
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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Prime Factors
Fifth graders review the concept of prime factorization. Then, they use the rules for divisibility and other notions to find the prime factorization of unfamiliar numbers. They solve problems in a whole class setting.
Curated OER
The Age-Old Problem
In this word problem worksheet, students solve 1 short answer word problem. Students determine the age of two boys given information such as their ages are the product of prime numbers.
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Math Worksheet: Factoring
For this math factoring worksheet, students write a multiplication equation with prime numbers that equals the given product. There are no examples or explanations of the math vocabulary. There are18 problems to solve.
Curated OER
Mathematical Treasure Hunt
The hunt is on! Young mathematicians follow clues and complete a series of ten math puzzles as they try to crack Dr. Integer's code and find the location of his hidden treasure.
Los Angeles County Office of Education
Assessment For The California Mathematics Standards Grade 4
Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...
Curated OER
Transition to algebra
Students recognize the difference between a prime and a composite number. For this prime and composite number lesson, students use a factor tree model to show prime factorization. Students participate in a bingo activity....
Curated OER
Number Theory Worksheet 2: The Sieve of Eratosthenes
in this number theory worksheet, learners use the Sieve of Eratosthenes to find all primes up to the number 100. Students follow the directions to circle primes and multiples on the hundred chart.
Curated OER
Prime Factorization
In this prime factorization worksheet, students list the prime factors of the 2 digit numbers given to them. Students complete 9 problems.
Curated OER
Sets
In this number sets worksheet, students complete a crossword puzzle in which the correct numbers are entered to answer the clues about even, odd, prime and natural numbers.
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Prime Factorize
In this prime factorization worksheet, students prime factorize the nine given numbers on a line. Each number goes to the hundreds place.
Curated OER
Grade 5 Math: Factorization 2
In this grade 5 math activity, 5th graders write 8 numbers as the product of their prime factors, using exponents to show multiples of the prime factor when needed.
Curated OER
Primes and Exponents
In this primes and exponents worksheet, students read about prime numbers and their expressions, then work with a group to complete 6 problems.
Curated OER
Eratosthenes Sieve¦
For this math worksheet, students find the prime numbers through going through the factors in sequential order. The answers are used to create the words at the bottom of the page.
Curated OER
Factor Game (Number Theory)
Students use a Factor Board game to identify the properties of prime, composite, abundant, deficient and perfect numbers. The game is comprised of the numbers from 1 to 30 placed in a 5 by 6 grid. Pupils figure out they can score more...
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