Warning: This file contains FUN! Tired of boring math drills? Human Calculator Relay Races spice up those old, boring math skill drills. In this race, students will have to add and subtract decimals and work as a team to win the race. This activity can be printed or you can hand it out as a digital copy by using Google Slides. Using the digital copy will allow students to answer and see their teammates' answers in real time. Further digital instructions are included in the file. The answer key is also included.