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8 reviewed resources for finding lcm and gcd

Lesson Planet

Greatest Common Divisor and Least Common Multiple

For Teachers 8th - 12th Standards
Students solve problems using the GCD and LCM. In this algebra lesson, students factor and simplify equations using the greatest common and least common factors and multiples. They factor integers in pairs.
Lesson Planet

Lease Common Multiple: Graphing Calculator Activity

For Students 5th - 6th
In this math worksheet, students complete a total of 3 problems using a graphing calculator to find the least common multiples of the given numbers. There are helpful diagrams and instructions. The problems are multi-step.
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Here's Looking at Euclid

For Teachers 9th - 12th
Students explore the concept of GCD and LCM. In this GCD and LCM lesson, students determine the GCD and LCM of pairs of integers of two or fewer digits, three or more digits, and express a positive integer as a product of prime powers....
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A Plea for Pure Mathematics

For Teachers 9th - 12th
Learners explore the concept of GCD and LCM.  In this GCD and LCM instructional activity, students use a CAS program on their graphing calculator to determine the LCD and GCD of polynomials and large numbers.  Learners use the GCD...
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Oliver's Method

For Teachers 8th - 10th
Students differentiate between GCF and LCM. In this math lesson, students discover the relationship between LCM and GCF and relate it to Oliver's method. They incorporate the TI into this activity.
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Factors for Grade 6: HCF, GCD and GCF

For Students 6th
In this factors for grade 6: HCF, GCD, and GCF worksheet, 6th graders answer 10 multiple choice questions, about factors and divisors, with answers available online.
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AT-Home Practice: Number Theory

For Students 4th - 6th
In this number theory learning exercise, students complete a set of 22 problems covering GCD, LCM and prime factorization. Students then play a "family fun" game based on LCM. 
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Exercise Set: Fractions

For Teachers 4th - 6th
In this fractions worksheet, young scholars complete a total of 58 problems, finding GCD and LCM, changing improper fractions to mixed and evaluating and reducing.