Math Teacher’s Got Problems is providing you with an engaging and fun way for students to practice simplifying expressions by combining like terms. The activity requires students to simplify each expression to determine what fun facial feature to add to each Emoji©. All the expressions include positive and negative numbers with up to six terms and 2 variables. This activity covers the Common Core standard EE1 and EE2 for 7th grade, but would be useful as a review for 8th grade or Algebra. A key is provided, as well as suggestions for interventions and a modified version to be used as an enrichment activity for advanced students for easy differentiation. Great as a math station or as a stand-alone activity for a quick and easy to grade for a formative assessment.