This is a sample packet with 1 worksheet and 1 answer key. (See below for the link to my 5 page packet.Students color by code, by either odd or even number. These are great activities to have on hand for:center work,individual work,morning work,early finishers,or a simple exit ticket to assess student understanding.This is a great resource for second grade, or as a quick review activity for third graders at the beginning of the year. (It does align with CCSS: 2.OA.C.3.)If you would like to purc