Press CE to delete current numbers and symbols. Press √ for square root. !VERY IMPORTANT! PRESS GTLT TO COMPARE, NEVER PRESS IT BEFORE YOUR 1ST NUMBER IT WONT WORK! Press 1 on your key board to open the Helper list, press it again to close it. You need to learn how to use I calculator if u don't know what the other keys on the calculator does. I spent so long making thing and it has 15+ blocks, so please ❤+⭐ v2 - added Square Root v3 - added comparing