Combining Like Terms worksheets. Made for 6th grade. All addition and subtraction involves positive integers. This listing is for the worksheets only. If you are also looking for a presentation that follows along with the worksheets, check out the bundle.Included: three worksheetsSkills covered:Vocabulary : variable, exponent, coefficient, term, like terms. Identify like termsCombine Like terms. (all addition and subtraction involves positive integers)Common Core State Standards:6.EE.3 apply p