GCF & LCM Monomials | Algebra 1 Keystone Prep A1.1.1.2.1
by Making Algebra Fun by Angela Dougher © 2026
Premier Publisher
Price: $0.5 USD
Subjects: math,structureInExpressions
Grades: 8,9
Description
Give your Algebra 1 students self-grading practice finding the greatest common factor and least common multiple of monomials — the skill that makes factoring click later. This 5-card deck targets Keystone Anchor A1.1.1.2.1: Find the Greatest Common Factor (GCF) and/or the Least Common Multiple (LCM) for sets of monomials. What students do Every card is multiple choice — students tap the correct monomial and get instant feedback. No typing exponents, so nobody loses a point to formatting. Skills covered GCF of two monomials with variable powers (12x² and 18x³) LCM of monomials with two different variables (8a²b and 12ab³) GCF with two variables at different powers (24m³n² and 36m²n⁴) Finding GCF and LCM for the same pair, in one question Extending to a set of three monomials (18x²y³, 24x³y, 30xy²) The wrong answers are built from the mistake students make constantly — using the larger exponent for the GCF and the smaller one for the LCM. Students who reverse the rule land on a distractor instead of stumbling into the right answer. Great for: Keystone and state test prep, factoring prerequisite practice, bell ringers, homework, stations, sub days, remediation, and small-group intervention. Part of a growing Algebra 1 Keystone Prep series — one standard-aligned deck for every eligible content standard.