A large square on the wall is divided into 9 equal squares so that the numbers 1-9 can be marked. Participant A plays the ball against the wall and calls out the number hit. Participant B then plays the ball back against the wall and adds his points to the previous number and so on. Which player is better at playing without making mistakes and calculating at the same time (e.g. 10 "lives" per player)?
Note:
More time to find the solution: the ball can be balanced on the racket if necessary until the result is called
Start again from 0 after each rally or continue playing from the last valid number
Variants:
- Design the floor field with different operation symbols or simply with plus and minus symbols for the next number
- Multiple players: complete tasks in round robin form
