This is a great resource to review combining like terms in a fun way! All students need are markers, crayons, or colored pencils. This is best used around Earth Day. The worksheet can be given in class, as homework, and/or used as a formative assessment. This resource is not editable. This product will provide you with a PDF. These Expressions Require Students to: Identify like terms in an expressionCombine like terms by adding and subtracting their coefficients Add and subtract negative integer