Need an engaging activity that keeps your students focused while practicing math skills at the same time? This digital mystery puzzle is the answer. What is included?Student Activity - 16 decimal addition problemsDirections how to share or post to your studentsAnswer Key How to use?Read & follow the Directions Sheet to get this activity out to your studentsUse as an independent, partner, or small group activity. Activities also available: Cut & Paste Worksheets (and Free Templates to make y