A little sudoku-like app for helping first-graders practice addition

position cursor by clicking on text

In the process, a bugfix: up/down from line to drawing or vice versa.

Created by  Kartik K. Agaram  on May 17, 2022
2INHXC3KRJVZTX2BQ63ZQLHIC5SWPUG4PQKCMLC7SQKN5R7LJZ6QC
Change contents