by: Erwin Poth • 0
PlayTo100 is a mental arithmetic game for kids between 8 and 80 years old.
You play against your smartphone trying to reach the sum of 100 before your smartphone does.
The game starts at the sum of 0 and each of you adds alternately a number between 1 and 10 to the same sum. The first player who reaches the sum of 100 has won.