SUBTRACTION of FRACTIONS - OPEN ENDED Number Tile ActivityThis is an open ended NUMBER TILE Activity in that there are many possible answers.Students will work together, communicate mathematically, problem solve, look for patterns, and learn a lot about fractions while doing this activity. Even high school students will have fun with this activity. It can be used as a warm-up/bell ringer, part of a lesson, or even a closure activity. Have fun and remember to leave feedback!