NORTON, PATRICIA. "Multi-Step Equation Quiz (Version A/B)". OER Commons. Institute for the Study of Knowledge Management in Education, 10 Jul. 2020. Web. 18 Dec. 2024. <https://goopennc.oercommons.org/authoring/3400-multi-step-equation-quiz-version-a-b>.
NORTON, P. (2020, July 10). Multi-Step Equation Quiz (Version A/B). OER Commons. Retrieved December 18, 2024, from https://goopennc.oercommons.org/authoring/3400-multi-step-equation-quiz-version-a-b.